| I 2 soliti idioti | Enrico Lando | comedy film | Italy |
| I Am a Dad | Se-Yeong Lee, Jeon Man-Bae | drama film, action film, crime film | South Korea |
| I Am Here | Anders Morgenthaler | drama film | Germany, Denmark |
| I am Jane Doe | Mary Mazzio | documentary film | United States |
| I Am Kalam | Nila Madhab Panda | children's film | India |
| I Am Nasrine | Tina Gharavi | drama film | United Kingdom |
| I Am Not a Tourist, I Live Here | Peeter Urbla | drama film | Estonia |
| I Am Sam | Jessie Nelson | drama film, comedy film, trial film | United States |
| I Am the Blues | Daniel Cross | documentary film | Canada |
| I Can Get It for You Wholesale | Michael Gordon | romance film | United States |
| I Can Quit Whenever I Want | Sydney Sibilia | comedy film, action film | Italy |
| I Can Quit Whenever I Want: Masterclass | Sydney Sibilia | comedy film, action film, crime film | Italy |
 I colpevoli | Turi Vasile | drama film | France, Italy |
| I Come from Childhood | Viktor Turov | novella film | Soviet Union |
| I Come with the Rain | Trần Anh Hùng | drama film, crime film | France |
| I Do Not Care If We Go Down in History as Barbarians | Radu Jude | drama film, comedy film, historical film, comedy drama | France, Germany, Czech Republic, Romania, Bulgaria |
| I Don't Kiss | André Téchiné | drama film, LGBTQ-related film | France, Italy |
| I Don't Want to Get Married | Sergei Nikonenko | comedy film | Russia, Byelorussian Soviet Socialist Republic |
| I Found Stella Parish | Mervyn LeRoy | — | — |
| I Give It a Year | Dan Mazer | romantic comedy film | United Kingdom |
| I Give My First Love to You | Takehiko Shinjō | drama film | Japan |
| I Had a Feeling I Was Dead | Wolf Gremm | drama film | Germany |
| I Hate Blondes | Giorgio Capitani | comedy film | France, Germany, Italy |
| I Hate Luv Storys | Punit Malhotra | musical film, romantic comedy | India |
| I Hate You | Sergei Bodrov | drama film, drama fiction | Soviet Union |
| I Hear the Trees Whispering | József Gallai | mystery film, drama film, thriller film, adventure film, science fiction film | United Kingdom, Norway, Hungary, United States |
| I Heart Huckabees | David O. Russell | drama film, comedy film | United Kingdom, Germany, United States |
| I Know What You Did Last Summer | Jennifer Kaytin Robinson | slasher film | United States |
 I Live in Fear | Akira Kurosawa | drama film | Japan |
| I Love You | Takis Vougiouklakis | romance film, drama film | Greece |
| I Love You | Dalibor Matanić | drama film | Croatia |
| I Love You All | Claude Berri | drama film | France |
| I Love You in Every Language in the World | Leonardo Pieraccioni | comedy film | Italy |
| I Love You, Goodbye | Laurice Guillen | romance film | Philippines |
| I Love You, I Love You Not | Billy Hopkins | romance film, drama film | France, United Kingdom, Germany, United States |
| I Love You, Life! | Mikhail Yershov | drama film | Soviet Union |
| I Loved an Armchair | Dinos Dimopoulos | comedy film | Greece |
| I Loved You | Ilya Frez | teen film, romantic comedy film | Soviet Union |
 I Married a Witch | René Clair | — | — |
| I Met a Girl | Rafail Perelshtejn | — | — |
| I Miss You | Anders Grönros | drama film | Finland, Sweden |
| I Murder Seriously | Antonio Urrutia | comedy film, thriller film | Spain, Mexico |
| I Play Rocky | Peter Farrelly | drama film, biographical film | United States |
| I ragazzi di via Panisperna | Gianni Amelio | drama film, historical film | Italy |
| I Sell the Dead | Glenn McQuaid | monster film, zombie comedy | United States |
| I Shall Never Forget | Pavel Kadochnikov | drama film | Soviet Union |
| I Speak the Truth | Levan Khotivari | drama film, detective film | Soviet Union |
| I Spit on Your Grave III: Vengeance is Mine | Richard Schenkman | horror film, crime film | United States |
| I Stand Alone | Gaspar Noé | drama film, crime film | France |
| I Still Believe | Andrew Erwin, Jon Erwin | drama film, biographical film | United States |
| I Still See You | Scott Speer | mystery film, thriller film | United States |
 I Take This Woman | Marion Gering | romance film, drama film | United States |
| I Tawt I Taw a Puddy Tat | Matthew O'Callaghan | — | United States |
| I theia ap' to Chicago | Alekos Sakellarios | — | — |
| I Trust You | Massimo Venier | comedy film | Italy |
| I Want to Eat Your Pancreas | Shinichiro Ushijima | drama film | Japan |
| I Was a Teenage TV Terrorist | Stanford Singer | comedy film | United States |
| I Was Born in a Garage | Arko Okk | documentary film | Estonia |
| I Will Repay | Henry Kolker | — | — |
| I Wish I Had a Wife | Park Heung-sik | romance film | South Korea |
| I Won't Come Back | Ilmar Raag | drama film | Russia, Belarus, Estonia, Kazakhstan, Finland |
| I Won't Die for Love | Marta Matute | drama film | Spain, Belgium |
| I'll Get By | Richard Sale | — | — |
| I'll Get You for This | Joseph M. Newman | — | — |
 I'll Take Her Like a Father | Alberto Lattuada | comedy film, comedy drama | Italy |
| I'm a Cyborg, But That's OK | Park Chan-wook | drama film, science fiction film, romantic comedy | South Korea |
| I'm All Yours | Baya Kasmi | comedy drama | France |
| I'm coming to you!.. | Valentin Pavlovsky | novella film | Soviet Union |
| I'm Done | Yevgeny Sherstobitov | comedy film, cinematic fairy tale, speculative fiction film, musical film | Soviet Union |
| I'm going to search | Igor Dobrolyubov | drama film | Soviet Union |
 I'm Going to Tell You a Secret | Jonas Åkerlund | documentary film | United States |
| I'm Gonna Buy a Dad | Aman Manteghi | drama film, comedy film | Iran |
| I'm Not Scared | Gabriele Salvatores | mystery film, drama film, crime film | United Kingdom, Spain, Italy |
| I'm Offering My Hand and Heart | Victor Sokolov | — | Soviet Union |
| I'm So Excited | Pedro Almodóvar | comedy film, LGBTQ-related film | Spain |
| I'm Starting from Three | Massimo Troisi | comedy film | Italy |
| I'm the One You Want | Dag Johan Haugerud | drama film | Norway |
| I, Daniel Blake | Ken Loach | drama film | France, United Kingdom, Belgium |
| I, Justice | Zbyněk Brynych | drama film, science fiction film | Czechoslovakia |
 I, Robot | Alex Proyas | cyberpunk, action film, dystopian film, neo-noir, detective film, science fiction film | United States |
| I, Son of Working People... | Vladimir Strelkov | drama film | Soviet Union |
| I, The Executioner | Ryoo Seung-wan | action film, thriller film | South Korea |
| I, the Other | Mohsen Melliti | drama film | Italy |
| I. You. They. | Peter Foldes | fantasy film | France |
| Ibiza | Arnaud Lemort | comedy film | France |
| Ice Station Zebra | John Sturges | drama film, submarine film, action film | United States |
| Icebound | William Churchill deMille | — | — |
| Ichi | Fumihiko Sori | action film | Japan |
| Icon | Eli Cross | pornographic film | United States |
| Iddarammayilatho | Puri Jagannadh | romance film, action film | India |
| Iddaru Mitrulu | Adurthi Subba Rao | drama film | India |
| Identification of a Woman | Michelangelo Antonioni | drama film | France, Italy |
| Idhaya Thirudan | Saran | soundtrack | India |
| Idiocracy | Mike Judge | comedy film, dystopian film, science fiction film, science fiction comedy | United States |
 Idiot's Delight | Clarence Brown | musical film, comedy drama | United States |
| Idle Hands | Rodman Flender | teen film, comedy film, horror film, comedy horror | United States |
| Idols | Florián Rey | romance film | Spain |
| IF | John Krasinski | fantasy film, comedy film, speculative fiction film, adventure film, musical film | United States |
| If a Man Answers | Henry Levin | romance film, comedy film | United States |
| If Beale Street Could Talk | Barry Jenkins | romance film, drama film | United States |
| If Four Walls Told | Fred Paul | — | — |
| If I Stay | R. J. Cutler | romance film, teen film, drama film, ghost film | United States |
| If I Were Free | Elliott Nugent | drama film | United States |
 If I Were King | J. Gordon Edwards | — | — |
| If I Were King | Frank Lloyd | drama film | United States |
| If I Were Rich Man | Álvaro Fernández Armero | comedy film | Spain |
 If I'm Lucky | Lewis Seiler | romance film, comedy film, musical film | United States |
| If Looks Could Kill | William Dear | comedy film, action film, spy film | United States |
| If the Shoe Fits | Tom Clegg | romance film, comedy film | France, United States |
| If You Have an Aunt | Carl Boese | — | — |
| If You Knew Susie | Gordon Douglas | comedy film | United States |
| If You Were Me 3 | Jeong Yun-cheol | drama film | South Korea |
| Igla Remix | Rashid Nugmanov | drama film, thriller film | Russia, Kazakhstan |
| IGo to Japan | Steve Hoefer | adventure film, comedy television program | United States |
| Igra v pravdu | Viktor Shamirov | drama film | Russia |
| Igualita a mí | Diego Kaplan | comedy film | Argentina |
| Ija emere ati aje | — | — | Nigeria |
| Ijakumo | Adebayo Tijani | drama film | Nigeria |
| Ikarie XB-1 | Jindřich Polák | drama film, adventure film, science fiction film | Czechoslovakia |
| Iki Esir | Esmail Koushan, Natuk Baytan | comedy film, adventure film | Turkey, Iran |
| Ikkis | Sriram Raghavan | — | India |
| Ikíngut | Gísli Snær Erlingsson | family film, action film, adventure film | Iceland, Norway, Denmark |
| Il coltello di ghiaccio | Umberto Lenzi | mystery film, horror film, thriller film, crime film | Spain, Italy |
| Il confessionale | Jenny Forte | pornographic film, religious film | Italy |
 Il demonio | Brunello Rondi | drama film, horror film | Italy |
| Il Divo | Paolo Sorrentino | drama film | France, Italy |
 Il domestico | Ary Fernandes, Luigi Filippo D'Amico | comedy film | Italy |
| Il dramma di una notte | Mario Caserini | — | — |
 Il giovane normale | Dino Risi | comedy film | Italy |
| Il Maestro | Marion Hänsel | drama film | France |
| Il mio domani | Marina Spada | drama film | Italy |
 Il seduttore | Franco Rossi | comedy film | Italy |
| Il segreto del castello di Monroe | Augusto Genina | — | — |
| Il siluramento dell'Oceania | Augusto Genina | — | — |
| Il taglio del bosco | Vittorio Cottafavi | drama film | Italy |
| Il testimone invisibile | Stefano Mordini | locked room mystery, thriller film | Italy |
| Il treno crociato | Carlo Campogalliani | drama film | Italy |
| Ilargi guztiak | Igor Legarreta | drama film, fantasy film, vampire film | Spain |
| Ile ola lewu | Dele Ogunwola, Tayo Ogunwola | — | Nigeria |
| Ill Starred Babbie | Sherwood MacDonald | — | — |
| Illegal | William C. McGann | — | — |
| Illusion | Victor Tourjansky | romance film, drama film | Germany, Nazi Germany |
| Ils sont partout | Yvan Attal | comedy film | France |
| Ilya Muromets | Aleksandr Ptushko | fantasy film, adventure film | Soviet Union |
| Im Reich des silbernen Löwen | Franz Josef Gottlieb | adventure film | Germany, Spain |
| Images | Robert Altman | drama film | United Kingdom, United States |
| Imaginum | Isaac Sandoval, Alberto Mar | science fiction film | Mexico |
| Imitator | Oleg Fialko | comedy film | Soviet Union |
| Immaculate | Michael Mohan | psychological horror film, horror film | United States, Italy |
| Immortal | Enki Bilal | drama film, dystopian film, live-action/animated film, science fiction film | France, United Kingdom, Italy |
| Immortal Sergeant | John M. Stahl | — | — |
| Immortal Waltz | E. W. Emo | musical film | Germany, Austria |
 Immortals | Tarsem Singh | drama film, sword-and-sandal film, fantasy film, action film, adventure film | United States |
| Imperium: Augustus | Roger Young | war film | United Kingdom, United States, Italy |
| Imsai Arasan 24th Pulikecei | Chimbu Deven | comedy film | India |
| In America | Jim Sheridan | drama film | United Kingdom, Ireland, United States |
| In and Out of Court | Lu Xiaoya | trial film | People's Republic of China |
| In Ashes | — | drama film, LGBTQ-related film | Denmark |
| In August of 1944 | Michail Ptashuk | drama film, action film, spy film, war film | Russia, Belarus |
| In Calabria | Tommaso Cotronei, Vittorio De Seta | documentary film | Italy |
 In Caliente | Lloyd Bacon | comedy film | United States |
 In Cold Blood | Richard Brooks | drama film, docudrama, crime film | United States |
| In Enemy Country | Harry Keller | action film | United States |
| In God We Tru$t | Marty Feldman | comedy film | United States |
| In Good Hands | Ketche | drama film | Turkey |
| In His Hands | Anne Fontaine | drama film | France, Belgium |
| In Jazz Style | Stanislav Govorukhin | romantic comedy film | Russia |
| In Love and War | Richard Attenborough | romance film, drama film, war film, biographical film | United States |
| In My Life | Olivia Lamasan | LGBTQ-related film, comedy drama | Philippines |
| In Old Kentucky | George Marshall | comedy film | United States |
| In Orange | Joram Lürsen | drama film, association football film | Netherlands |
| In Praise of Shadows | Catherine Martin | documentary film | Canada |
 In Pursuit of Polly | Chester Withey | — | — |
| In S. City | Iosif Kheifits | drama film, historical film | Soviet Union |
| In Search of Criminals | Ahmad Safaei | — | Iran |
| In Search of Greatness | Gabe Polsky | sport film, documentary film | United States |
| In Search of Happiness | Grigori Roshal, Vera Stroyeva | drama film | Soviet Union |
| In session, do not disturb | Simon P.R. Bewick | documentary film | France |
| In Spring | Mikhail Kaufman | — | — |
| In That Land... | Lidia Bobrova | drama film | Russia |
| In the Army Now | Daniel Petrie | comedy film, war film | United States |
| In the Black Sands | Iskander Khamrayev | historical film, ostern, adventure film, war film | Soviet Union |
| In the Days of Whore | Thomas Zupko | drama film, historical film, pornographic film, horror film | United States |
 In the Doll Land | Vyacheslav Levandovsky | fantasy film, live-action/animated film | Soviet Union |
| In the Electric Mist | Bertrand Tavernier | mystery film, drama film, crime film | France, United States |
| In the Elemental World | Christy Cabanne | — | — |
| In the Gorge | Vojko Duletič | drama film | Socialist Republic of Slovenia |
| In the Headlines | John G. Adolfi | — | — |
| In the Heart of the Machine | Martin Makariev | drama film, thriller film | Bulgaria |
| In the House | François Ozon | mystery film, drama film, thriller film, comedy drama | France |
 In the Land of Blood and Honey | — | romance film, drama film, war film | United States |
| In the Land of Brothers | Raha Amirfazli, Alireza Ghasemi | drama film | France, Netherlands, Iran |
| In the Mountains of Yugoslavia | Abram Room, Eduard Tisse | drama film, war film | Soviet Union |
| In the Name of Ben Hur | Mark Atkins | action film | United States |
| In the Name of Love | Howard Higgin | — | — |
| In the Name of the Father | Jim Sheridan | drama film, trial film, prison film, biographical film, political drama | United Kingdom, Ireland, United States |
| In the Name of the King | Uwe Boll | fantasy film, action film, adventure film | Canada, Germany, United States |
| In the Name of the Land | Edouard Bergeon | drama film | France, Belgium |
| In the Name of the Law | Nikos Foskolos | drama film | Greece |
| In the Name of the Mother and the Son | Maryse Legagneur | documentary film | Canada |
 In the Quagmire | Ivan Perestiani | — | — |
| In the Shadow of the Wind | Yves Simoneau | drama film | France, Canada |
| In the Wild Mountains | Yan Xueshu | drama film | People's Republic of China |
| In the Winter Dark | James Bogle | drama film | Australia |
| In This Corner of the World | Sunao Katabuchi | drama film, historical film, war film | Japan |
| In Which We Serve | Noël Coward, David Lean | drama film, flashback film, war film | United Kingdom |
| Inazuma Eleven GO vs. Danbōru Senki W | Yoshikazu Miyao | association football video game, crossover fiction, association football film | Japan |
| Inazuma Eleven GO: Kyūkyoku no Kizuna Gurifon | Yoshikazu Miyao, Akihiro Hino | association football video game, association football film | Japan |
| Incantato | Pupi Avati | drama film | Italy |
| Incendies | Denis Villeneuve | mystery film, drama film | France, Canada |
| Incident in the Taiga | Yuri Yegorov | — | — |
| Incontrôlable | Raffy Shart | comedy film | France |
| Incredible Love | — | drama film | Indonesia |
| Incredibles 2 | Brad Bird | superhero film, comedy film, action film, adventure film | United States |
| Indecency | Pierre Woodman | pornographic film | Sweden |
| Independent's Day | Laura Beth Love | fantasy film, mockbuster, science fiction film, disaster film | United States |
| Indescribable | — | drama film | United States |
| India Lockdown | Madhur Bhandarkar | — | India |
 Indiana Jones and the Kingdom of the Crystal Skull | Steven Spielberg | action film, treasure hunt film, adventure film | United States |
| Indignation | James Schamus | coming-of-age film, drama film, LGBTQ-related film | United States |
| Indiscretion | Wilfrid North | — | — |
| Indivisible Partners | Wang Hengli | comedy film | People's Republic of China |
| Indrek | Mikk Mikiver | drama film | Soviet Union, Estonia |
| Inevitable | Jorge Algora | drama film | Argentina |
| Infamous | Douglas McGrath | drama film, LGBTQ-related film, biographical film | United States |
| Infatuation | Harry A. Pollard | — | — |
 Infelici e contenti | Neri Parenti | comedy film | Italy |
| Infernal Affairs | Alan Mak, Andrew Lau | drama film, action film, police film, thriller film, crime film | Hong Kong |
| Infinitas | Marlen Khutsiev | drama film | Russia |
| Infinite Sorrow | — | — | — |
| Inflation im Paradies | Susanne Blänkner, Wolfgang Ruehl, Richard L. Wagner, Nikolai Müllerschön | drama film, anthology film | Germany |
| Inheritance | Neil Burger | spy film, thriller film | United States |
| Ink | Danny Boyle | drama film, biographical film | United Kingdom |
| Inkheart | Iain Softley | family film, fantasy film, adventure film | United Kingdom, Germany, United States, Italy |
| Inki | George Moorse | drama film | Germany |
| Inner City Princess | Rafa Montesinos | drama film | Spain, Italy |
| Innocence | Lucile Hadžihalilović | coming-of-age film, mystery film, drama film, experimental film | France, United Kingdom, Belgium |
| Innocent Blood | John Landis | vampire film, comedy horror, romantic comedy | United States |
| Innocent Witness | Lee Han | drama film, legal drama | South Korea |
| Innocents of Paris | Richard Wallace | — | — |
| Innu Nikamu: Resist and Sing | — | — | Canada |
| Inocente | Sean Fine | drama film, biographical film, documentary film | United States |
| Inostranka | Konstantin Zhuk, Aleksandr Seryj | comedy film | Soviet Union |
| Insaciable | Armando Bó | drama film, LGBTQ-related film | Argentina |
| Insadong Scandal | Park Hee-gon | drama film, action film, heist film, crime film | South Korea |
| Inside Deep Throat | Fenton Bailey, Randy Barbato | documentary film | United States |
| Inside Job | Jean Yarbrough | film noir, crime film | United States |
| Inside Out | Artie Mandelberg | drama film, crime film | United States |
| Inside Out 2 | Kelsey Mann | coming-of-age film, comedy drama | United States |
| Inside Paris | Christophe Honoré | romance film, drama film | France |
| Inside the Lines | Roy Pomeroy | drama film | United States |
| Inside the Walls of Folsom Prison | Crane Wilbur | — | — |
| Insidious: Chapter 3 | Leigh Whannell | horror film, thriller film, ghost film | Canada, United States |
| Insidious: Out of the Further | Jacob Chase | supernatural horror film | United States, Australia |
| Insidious: The Last Key | Adam Robitel | horror film, LGBTQ-related film, thriller film, ghost film, supernatural horror film | United States |
| Insidious: The Red Door | Patrick Wilson | horror film, speculative fiction film, supernatural horror film | United States |
 Insignificance | Nicolas Roeg | drama film, comedy drama | United Kingdom, Australia |
 Inspiration | Clarence Brown | drama film | United States |
| Instant Family | Sean Anders | drama film, comedy film | United States |
| Instant Mommy | — | drama film | Philippines |
| Instinct | Halina Reijn | thriller film, prison film | Netherlands |
| Instinct | Jon Turteltaub | drama film, prison film | United States |
| Insult | Arkadi Sirenko | drama film, comedy film | Soviet Union |
| Insurance Investigator | George Blair | crime film | United States |
| Insya Allah Sah 2 | Anggy Umbara | drama film, comedy film, action film | Indonesia |
| Interactive Sex with Lisa Ann | Mike Quasar | pornographic film | United States |
| Internal Affairs | Mike Figgis | drama film, crime film | United States |
| Interpol | — | — | British Hong Kong |
| Interrupted Melody | Curtis Bernhardt | drama film, biographical film, musical film | United States |
| Interrupted Song | Frantisek Zácek, Nikoloz Sanishvili | romance film, war film | Georgian SSR, Czechoslovakia |
| Intersection | Mark Rydell | drama film | United States |
| Interstellar | — | time-travel film, drama film, dystopian film, thriller film, adventure film, science fiction film, hard science fiction | United Kingdom, United States |
| Intervenção, É Proibido Morrer | — | action film | Brazil |
| Into Harm's Way | — | documentary film | United States |
| Into the West | Mike Newell | fantasy film | Ireland |
| Into the Wild | Sean Penn | drama film, drama fiction, docudrama, road movie, biographical film | United States |
| Inuyasha the Movie: Affections Touching Across Time | Toshiya Shinohara | time-travel film, fantasy film | Japan |
| Invader | Daniel Calparsoro | thriller film | France, Spain |
 Invasion of Astro-Monster | Ishirō Honda | kaiju, action film, alien invasion, adventure film, science fiction film | Japan |
| Invasion of the Body Snatchers | Philip Kaufman | science fiction horror film, psychological horror film, psychological thriller film, suspense film, mystery film, horror film, dystopian film, alien invasion, thriller film, science fiction film | United States |
| Invasion of the Neptune Men | Kôji Ohta | superhero film, alien invasion, science fiction film | Japan |
 Invention for Destruction | Karel Zeman | fantasy film, pirate film, live-action/animated film, adventure film, science fiction film | United States, Czechoslovakia |
| Invertigo | D.J. Caruso | horror film, science fiction film | — |
| Investigation of Related Events | Jānis Putniņš | — | Latvia |
| Invincible | Ericson Core | American football film, drama film, biographical film, historical drama | United States |
 Invisible Stripes | Lloyd Bacon | drama film, prison film, crime film | United States |
| Invitation to the Waltz | Paul Merzbach | drama film, musical film | United Kingdom |
| Io amo Andrea | Francesco Nuti | romantic comedy film | Italy |
| Io capitano | Matteo Garrone | drama film, adventure film, docudrama | France, Belgium, Italy |
| Io sono Tempesta | Daniele Luchetti | drama film, comedy film | Italy |
| Iolanta | Vladimir Gorikker | — | Soviet Union |
 Iona | Valeriu Jereghi | drama film | Soviet Union |
| IP5: The Island of Pachyderms | Jean-Jacques Beineix | drama film | France |
| Ippadai Vellum | Gaurav Narayanan | action comedy film | India |
| Irandam Ulagam | K. Selvaraghavan | romance film, fantasy film | India |
| Iraqi Odyssey | Samir | documentary film | Germany, Switzerland, Iraq, United Arab Emirates |
| Irene Huss - Den som vakar i mörkret | Richard Holm | thriller film | Sweden |
| Irene Huss: The Man with the Small Face | Emiliano Goessens | thriller film | Sweden |
| Ireti | — | — | Nigeria |
| Iris | Richard Eyre | romance film, drama film, biographical film | United Kingdom, United States |
| Iris the Movie | Yang Yun-ho | romance film, action film | South Korea |
| Iron Eagle | Sidney J. Furie | action film, thriller film, war film | Canada, United States |
| Iron Eagle II | Sidney J. Furie | action film, thriller film | Canada, United States, Israel |
 Iron Man 3 | Shane Black | superhero film, comedy film, action film, adventure film, science fiction film | United States |
| Iron Mask | — | — | South Korea |
| Irrlicht | Erik Lund | — | — |
| Iru Vallavargal | K. V. Srinivasan | spy film | India |
| Irumbu Thirai | S. S. Vasan | — | India |
| Iruvar | Mani Ratnam | drama film, docudrama, biographical film | India |
| Is Everybody Happy? | Archie Mayo | — | — |
| Is Paris Burning? | René Clément | drama film, war film | France, United States |
| Isaac in America: A Journey with Isaac Bashevis Singer | Amram Eli Nowak | documentary film | United States |
| Ishkueu territory Woman territory | Claude Hamel | documentary film | Canada |
| Ishq | — | romantic thriller | India |
| Ishqiya | Abhishek Chaubey | drama film | India |
| Isla Blanca | Jeanne Leblanc | drama film | Canada |
| Island Keeper | Chen li | biographical drama film | People's Republic of China |
| Island Road | Francescu Artily | documentary film | France |
| Isle of Fury | Frank McDonald | adventure film | United States |
| Ispiritista: Itay, May Moomoo | Tony Y. Reyes | comedy horror, ghost film | Philippines |
| Issaq | Manish Tiwary | romance film | India |
| Istanbul Echoes | Giulia Frati | documentary film | France, Canada |
| Isusumbong Kita Sa Tatay Ko | Boots Plata | — | Philippines |
 It | Clarence G. Badger | — | — |
| It Began in the Rain | Eddie Stenberg, Thure Bahne | thriller film | Finland |
| It Comes at Night | Trey Edward Shults | post-apocalyptic film, thriller film, apocalyptic film, splatter film | United States |
| It Could Happen to You | Andrew Bergman | comedy drama, romantic comedy | United States |
| It Had to Be You | Don Hartman, Rudolph Maté | romantic comedy | United States |
| It Happened at the Police Station | Villen Azarov | drama film | Soviet Union |
| It Happened at the World's Fair | Norman Taurog | adventure film, musical film, romantic comedy | United States |
| It Happened in Brooklyn | Richard Whorf | musical film, romantic comedy | United States |
| It Happened in Damascus | José López Rubio, Primo Zeglio | comedy film | Italy |
 It Happened One Night | Frank Capra | romantic comedy film | United States |
| It Is No Dream | Richard Trank | documentary film | United States |
| It Pays to Advertise | Donald Crisp | — | — |
| It Takes Two | David Beaird | romantic comedy film | United States |
| It's a Great Feeling | David Butler | parody film, musical film | United States |
| It's a Mad, Mad Vengos | Thanasis Veggos | comedy film | Greece |
 It's a Wonderful World | W. S. Van Dyke | romantic comedy, crime film | United States |
| It's All My Fault | Yusaku Matsumoto | — | Japan |
| It's All Yours | Elliott Nugent | comedy film | United States |
| It's Complicated | Nancy Meyers | romantic comedy film, comedy of remarriage, comedy drama | United States |
| It's Easy to Fall into an Overgrown Ditch | Jānis Streičs | drama film | Soviet Union |
| It's Kind of a Funny Story | Ryan Fleck, Anna Boden | teen film, comedy film, comedy drama | United States |
 It's Love I'm After | Archie Mayo | screwball comedy film, romantic comedy | United States |
| It's My Time | Bai Xue | drama film, sport film, comedy film | People's Republic of China, Hong Kong |
| It's Tough to Be a Bird | Ward Kimball | comedy film, live-action/animated film | United States |
| It: Chapter Two | Andy Muschietti | horror film, LGBTQ-related film, supernatural horror film, slasher film | United States |
| Italia '61 | Jan Lenica | — | United States, Italy |
| Italian for Beginners | Lone Scherfig | romance film, drama film, comedy film, romantic comedy | Sweden, Denmark |
| Italian Night | Carlo Mazzacurati | drama film, comedy drama | Italy |
 Itinerary of a Spoiled Child | Claude Lelouch | drama film, melodrama | France, Germany |
| Ivan Makarovich | Igor Dobrolyubov | drama film | Soviet Union |
 Ivan Pavlov | Grigori Roshal | drama film, biographical film | Soviet Union |
 Ivan Tsarevich and the Gray Wolf | Vladimir Toropchin | fantasy film, comedy film, children's film, adventure film | Russia |
| Izu no Odoriko | Katsumi Nishikawa | teen film | Japan |
| Izzie's Way Home | Sasha Burrow | adventure film | United States |
| İki Genç Kız | Kutluğ Ataman | teen film, LGBTQ-related film, female buddy film | Turkey |