| K-19: The Widowmaker | Kathryn Bigelow | drama film, historical film, thriller film, disaster film | United Kingdom, Russia, Canada, Germany, United States |
| K-20: Legend of the Mask | Shimako Satō | action film | Japan |
| K-9 | Rod Daniel | comedy film, action film, buddy cop film | United States |
| K-9 and Company | John Black | science fiction | United Kingdom |
| K-Ramp | — | — | India |
| Kaaki Sattai | R. S. Durai Senthilkumar | action film | India |
| Kaala Patthar | Yash Chopra | drama film, action film, disaster film | India |
| Kabut Berduri | Edwin | mystery film, thriller film | Indonesia |
| Kadaikutty Singam | Pandiraj | drama film | India |
| Kadal | Mani Ratnam | romance film, drama film | India |
| Kader Bağlayınca | Orhan Aksoy | comedy drama | Turkey |
| Kadhalithal Podhuma | — | drama film | India |
| Kaena: The Prophecy | Pascal Pinon, Chris Delaporte | fantasy film, action film, speculative fiction film, adventure film, science fiction film | France, Canada |
| Kafka | Steven Soderbergh | drama film, dystopian film, biographical film | France, United States |
| Kai Naattu | V. C. Guhanathan | action film | India |
| Kaidan Kasane-ga-fuchi | Nobuo Nakagawa | — | — |
| Kaiji 2: The Ultimate Gambler | Toya Sato | thriller film | Japan |
| Kaikan memory: Watashi ga, iippai | Haruhi Oguri | pink film | Japan |
| Kaiser's Finish | Jack Harvey | — | — |
| Kalabalik i Fabriken | — | farce | Sweden |
| Kalabaliken i Bender | Mats Arehn | comedy film | Sweden |
| Kalasi Vunte Kaladu Sukham | Tapi Chanakya | drama film | India |
| Kalathur Kannamma | A. Bhimsingh | romance film, drama film | India |
| Kalidas | H. M. Reddy | biographical film, musical film | India |
| Kalidasu | Reddy Ravicharan | — | India |
| Kalkokkho | — | — | India |
| Kamaladalam | Sibi Malayil | — | India |
| Kamen Rider Blade: Missing Ace | Ryūta Tasaki | — | Japan |
| Kamen Rider Den-O & Kiva: Climax Deka | Osamu Kaneda | crossover fiction | Japan |
| Kamen Rider Kiva: King of the Castle in the Demon World | Ryūta Tasaki | vampire film | Japan |
| Kamen Rider: The Next | Ryūta Tasaki | tokusatsu | Japan |
| Kamilla and the Thief | Grete Salomonsen Hynnekleiv | drama film | Norway |
| Kampf um Rom | Andrew Marton, Robert Siodmak, Sergiu Nicolaescu | medieval film, historical drama | Germany |
| Kampung Urban di Timur Pondok Lirboyo | Dwidjo Utomo Maksum | — | Indonesia |
| Kamui Gaiden | Yoichi Sai | drama film, ninja film | Japan |
| Kancil | — | animated film | Indonesia |
| Kandahar | Major Ravi | war film | India |
| Kanehsatake: 270 Years of Resistance | Alanis Obomsawin | documentary film | Canada |
| Kanikuly Krosha | Grigori Aronov | teen film, family film, detective film, adventure film | Soviet Union |
| Kanmadam | A. K. Lohithadas | — | India |
| Kansas Raiders | Ray Enright | Western film | United States |
| Kanyadan | — | — | Nepal |
| Kanyamakan | Saïd Naciri | Western film, action film, adventure film, heist film | Morocco |
| Kapan Hamil? | Rizal Mantovani | comedy drama | Indonesia |
| Kapan Pindah Rumah | Herwin Novianto | drama film | Indonesia |
| Kareteci Kiz | Orhan Aksoy | martial arts film, action film, rape and revenge film, crime film | Turkey |
| Karius og Baktus | Ivo Caprino | — | Norway |
| Karma Aur Holi | Manish Gupta | — | India |
| Karmeliuk | Georgi Tasin | — | — |
| Karthika Deepam | Lakshmi Deepak | — | India |
| Karuppu Roja | — | fantasy film | India |
| Kasal | Ruel S. Bayani | — | Philippines |
| Kashchey the Deathless | Alexander Rou | romance film, fantasy film, action film, children's film, adventure film | Soviet Union |
| Kasoombo | Vijaygiri Bava | — | India |
| Kate, the Cat | Nils Molitor | pornographic film | Germany |
| Kath & Kimderella | Ted Emery | comedy film | Australia |
| Kathal | — | — | India |
| Kaththi | A. R. Murugadoss | drama film, action film | India |
| Katinka | Max von Sydow | romance film, drama film | Sweden, Denmark |
| Katja's Adventure | Lars Hesselholdt | family film, comedy film | Germany, Norway, Denmark, Italy |
| Kato hayabusa sento-tai | Kajirō Yamamoto | drama film, war film | Japan |
| Katsumi's Affair | Alain Payet | pornographic film | France |
| Katwoman XXX | Nicholas Steele | fantasy film, pornographic parody film, pornographic film, action film | United Kingdom |
| Katya-Katysha | Grigory Lipschitz | — | Soviet Union |
| Kavan | K. V. Anand | political thriller film | India |
| Kawakami Tetsuharu monogatari sebangō 16 | Eisuke Takizawa | — | — |
| Kazimierz Wielki | Czesław Petelski, Ewa Petelska | historical film, biographical film | Polish People's Republic |
| Kean ou Désordre et génie | Alexandre Volkoff | — | — |
| Kean: Genius or Scoundrel | Francesco Rosi, Vittorio Gassman | biographical film | Italy |
| Keanu | Peter Atencio | comedy film, action film, crime film | United States |
| Kedok Ketawa | Jo An Djan | — | — |
| Keep 'Em Rolling | George Archainbaud | drama film | United States |
| Keep an Eye on Amelia | Claude Autant-Lara | comedy film | France |
| Keeper | Guillaume Senez | drama film | France, Belgium, Switzerland |
| Keeping Mum | Niall Johnson | film noir, black comedy film, comedy drama | United Kingdom |
| Kehilan comes home | Anders Øvergaard | teen film | Norway |
| Keinumorsian | Valentin Vaala | — | Finland |
| Keisatsu Nikki | Seiji Hisamatsu | drama film | Japan |
| Kekko Kamen | Takafumi Nagamine | erotic film | Japan |
| Kelly's Heroes | Brian G. Hutton | action film, war film, heist film | United States, Yugoslavia |
| Kembang Kantil | — | horror film, thriller film | Indonesia |
| Kennedy | Anurag Kashyap | neo-noir, thriller film | India |
| Kentucky Kernels | George Stevens | comedy film | United States |
| Kentucky Woman | Walter Doniger | drama film | United States |
| Kept Husbands | Lloyd Bacon | drama film | United States |
| Keranda Berdarah | Nordin Ahmad | — | Singapore |
| Kereta Hantu Manggarai | Nayato Fio Nuala | horror film | Indonesia |
| Kermit's Swamp Years | David Gumpel | fantasy film | United States |
| Kesari | Anurag Singh | action film, war film | India |
| Kesari Chapter 2 | — | — | India |
| Kevi Rite Jaish | Abhishek Jain | comedy film | India |
| Kevin Hart: I'm a Grown Little Man | Shannon Hartman | stand-up comedy | United States |
| Kevin of the North | Bob Spiers | children's film | United Kingdom, United States |
| Keys to Tulsa | Leslie Greif | drama film, action film, crime film | United States |
| KGB Agents Also Fall in Love | Sebastián Alarcón | comedy film | Soviet Union |
| Khaad | Kaushik Ganguly | adventure film | India |
| Khaidi No. 150 | V. V. Vinayak | action film, Masala film | India |
| Khatabala | Yuriy Erzinkyan | — | Soviet Union |
| Khawto | Kamaleshwar Mukherjee | romantic thriller | India |
| Khodahafez Rafigh | Amir Naderi | drama film, police film, thriller film, Iranian New Wave, crime film | Iran |
| Khoj | Arka Ganguly | crime thriller film | India |
| Khoon va sharaf | Samuel Khachikian | drama film, war film, crime film | Iran |
| Khovanshchina | Vera Stroyeva | — | — |
| Khí phách anh hùng | Hồ Ngọc Xum | historical film, biographical film | Vietnam |
| Kick | Sajid Nadiadwala | action film | India |
| Kick In | George Fitzmaurice | — | — |
| Kickboxer | David Worth, Mark DiSalle | martial arts film, action film, rape and revenge film, thriller film | United States |
| Kid Cannabis | John Stockwell | drama film, biographical film, comedy drama, crime film | United States |
| Kid Galahad | Michael Curtiz | — | — |
| Kida | — | — | India |
| Kidnapping | Olga Perunovskaya | drama film | Russia, Byelorussian Soviet Socialist Republic |
| Kidnapping, Caucasian Style | Leonid Gaidai | romance film, adventure film, comedy drama | Soviet Union |
| Kidnep | Diederik Ebbinge | family film, adventure film | Netherlands |
| Kids in Love | Chris Foggin | coming-of-age film, comedy drama | United Kingdom |
| Kiev Resident | Timofei Levchuk | historical film, war film | Soviet Union |
| Kif Tebbi | Mario Camerini | — | — |
| Kihlaus | Teuvo Puro | — | — |
| Kikos | Patvakan Barkhudaryan | comedy film, silent film | Soviet Union |
| Kiks | Sergey Livnev | drama film | Soviet Union |
| Kilichundan Mampazham | Priyadarshan | romantic comedy film, comedy film | India |
| Kill Bill: A XXX Parody | Jakodema | pornographic parody film | United States |
| Kill List | Ben Wheatley | horror film, thriller film, crime film | United Kingdom |
| Kill Me Again | John Dahl | thriller film | United States |
| Kill Mobile | Miao Yu | drama film, comedy film | People's Republic of China |
| Kill Switch | Jeff F. King | thriller, action film | United States |
| Kill Them All and Come Back Alone | Enzo G. Castellari | Western film, Spaghetti Western | Spain, Italy |
| Killer Clans | Chor Yuen | martial arts film | Hong Kong |
| Killer McCoy | Roy Rowland | drama film, boxing film | United States |
| Killer Tenant | Takeshi Furusawa | pink film | Japan |
| Killer Toon | Kim Yong-gyun | horror film | South Korea |
| Killer's Kiss | Stanley Kubrick | — | — |
| Killers from Space | W. Lee Wilder | monster film, science fiction film | United States |
| Killhouse | Lubomyr Levytskyi | action film, thriller film | Ukraine |
| Killing Me Softly | Chen Kaige | mystery film, drama film, erotic thriller, thriller film, erotic film | United Kingdom, United States |
| Killing Time | Édouard Niermans | action film, thriller film, crime fiction | France |
| Kilometer 31 | Rigoberto Castañeda | horror film | Mexico |
| Kim Jong-boon of Wangshimni | Kim Jin-yeol | — | South Korea |
| Kim Novak Never Swam in Genesaret's Lake | Martin Asphaug | drama film, crime film | Sweden |
| Kim Possible: A Sitch in Time | Steve Loter | family film, comedy film, adventure film, science fiction film | United States |
| Kimagure Orange Road: I Want to Return to That Day | Tomomi Mochizuki | — | Japan |
| Kimi | Steven Soderbergh | police film, thriller film | United States |
| Kimi no Na wa | Hideo Ōba | drama fiction | Japan |
| Kina & Yuk | Guillaume Maidatchevsky | drama film, family film, adventure film | France, Canada, Italy |
| Kind Men | Karen Shakhnazarov | satirical film, comedy film | Soviet Union |
| Kindergarten | Jean-François Caissy | documentary film | Canada |
| King Boxer | Jeong Chang-hwa | martial arts film, drama film, action film | British Hong Kong |
| King Kelly | Andrew Neel | independent film | United States |
| King Kong | Peter Jackson | romance film, drama film, action film, adventure film | United States, New Zealand |
| King Kong | John Guillermin | drama film, monster film, fantasy film, action film, horror film, speculative fiction film, adventure film, science fiction film | United States |
| King Kong | Ernest B. Schoedsack, Merian C. Cooper | kaiju, drama film, fantasy film, horror film, speculative fiction film, adventure film, science fiction film | United States |
| King Kong Escapes | Ishirō Honda | kaiju, fantasy film, horror film, speculative fiction film, science fiction film | Japan, United States |
| King Kong vs. Godzilla | Ishirō Honda | — | Japan, United States |
| King Kongs Faust | Heiner Stadler | road movie, comedy drama | Germany |
| King Lear | Ernest C. Warde | — | — |
| King of Hockey | Noel M. Smith | drama film | United States |
| King of the Grizzlies | Ron Kelly | adventure film | United States |
| King of the Lost World | Leigh Scott | monster film, fantasy film, action film, mockbuster | United States |
| King of the Pecos | Bernard McConville, Joseph Kane | drama film, Western film | United States |
| King of the Royal Mounted | William Witney | — | — |
| King Solomon's Mines | Geoffrey Barkas, Robert Stevenson | fantasy film, treasure hunt film, adventure film | United Kingdom |
| Kingdom of Heaven | Ridley Scott | drama film, historical film, action film, drama fiction, war film, epic film | United Kingdom, Germany, United States |
| Kingdom of the Planet of the Apes | Wes Ball | science fiction action film, adventure film | United States |
| Kings and Queen | Arnaud Desplechin | romance film, drama film, comedy film, melodrama | France |
| Kings of the Sun | J. Lee Thompson | adventure film | United States |
| Kingsman: The Golden Circle | Matthew Vaughn | comedy film, action film, spy film, action comedy film, crime film | United Kingdom, United States |
| Kingsman: The Secret Service | Matthew Vaughn | comedy film, action film, spy film, action comedy film, crime film | United Kingdom, United States |
| Kini mose | — | — | Nigeria |
| Kinmedaru Otoko | Teruyoshi Uchimura | — | Japan |
| Kinnunen | Andri Luup | comedy film | Estonia |
| Kino-Eye | Dziga Vertov | — | — |
| Kino-Pravda No. 19: A Movie-Camera Race Moscow | Dziga Vertov | — | — |
| Kinsey | Bill Condon | drama film, LGBTQ-related film, biographical film | Germany, United States |
| Kiss Me Kate | George Sidney | musical film, romantic comedy | United States |
| Kiss Me, Baby | Roberto Cimpanelli | comedy film | Italy |
| Kiss the Girls | Gary Fleder | drama film, neo-noir, crime film | United States |
| Kiss Them for Me | Stanley Donen | romantic comedy | United States |
| Kiss Tomorrow Goodbye | Jason Priestley | erotic thriller film | United States |
| Kissed | Lynne Stopkewich | drama film | Canada |
| Kissing a Fool | Doug Ellin | romantic comedy | United States |
| Kitbull | Rosana Sullivan | animated film | United States |
| Kites | Anurag Basu | drama film, action film, thriller film, romantic thriller | United States, Mexico |
| Kites Over Helsinki | Peter Lindholm | drama film, historical film | Finland |
| Kitten with a Whip | Douglas Heyes | drama film, crime film | United States |
| KL24 Zombies | — | comedy horror | Malaysia |
| Klassentreffen | Til Schweiger | comedy film | Germany |
| Klimt | Raúl Ruiz | drama film, biographical film | France, United Kingdom, Germany, Austria |
| KLK Calling PTZ – The Red Orchestra | Horst E. Brandt | drama film | East Germany, Germany |
| Klown Kamp Massacre | Philip Gunn, David Valdez | horror film, slasher film | United States |
| Klute | Alan J. Pakula | crime thriller film, neo-noir | United States |
| Knife+Heart | Yann Gonzalez | drama film, LGBTQ-related film, thriller film | France, Mexico |
| Knight Without Armour | Jacques Feyder | romance film, drama film, spy film | United Kingdom |
| Knights of the Round Table | Richard Thorpe | action film, medieval film | United Kingdom, United States |
| Knives Out | Rian Johnson | mystery film, drama film, comedy film, thriller film, crime film | United States |
| Knock at the Cabin | M. Night Shyamalan | science fiction horror film, psychological horror film, psychological thriller film, suspense film, mystery film, drama film, post-apocalyptic film, action film, horror film, LGBTQ-related film, thriller film, psychological drama film | United States |
| Knockaround Guys | Brian Koppelman, David Levien | drama film, action film, comedy drama, crime film | United States |
| Knowing | Alex Proyas | mystery film, action film, science fiction film, disaster film | United Kingdom, United States |
| Knowledge Is for Acting Upon: The Manhattan Raid | — | documentary film | Pakistan |
| Knucklehead | Michael W. Watkins | comedy film | United States |
| Knut Formos siste jakt | Jan Erik Düring | drama film, fantasy film | Norway |
| Knutsen & Ludvigsen | Ola Winger | comedy film, children's film | Norway |
| Kobiety nad przepaścią | Michał Waszyński | — | — |
| Koch Brothers Exposed | Robert Greenwald | documentary film | United States |
| Koi Sugata Kitsune Goten | Nobuo Nakagawa | — | — |
| Koizora | Natsuki Imai | romance film, teen film, drama film | Japan |
| Kokosuni | — | documentary film | Korea |
| Koliivshchyna | Ivan Kavaleridze | drama film | Soviet Union |
| Komarov Brothers | Yuri Tupitsky | war film | Soviet Union |
| Komedi Gokil 2 | — | comedy film | Indonesia |
| Komppanian neropatit | Matti Oravisto | — | — |
| Kompromat | Jérôme Salle | thriller film | France |
| Kong: Skull Island | Jordan Vogt-Roberts | fantasy film, action film, speculative fiction film | United States |
| Konger av Oslo | Elsa Kvamme | documentary film | Norway |
| KonoSuba: God's Blessing on This Wonderful World! Legend of Crimson | Takaomi Kanasaki | comedy film, ecchi, adventure film, isekai | Japan |
| Konotopska vidma | — | fantasy film | Soviet Union |
| Kooperativ Politbyuro ili budet dolgim proshchanie | Michail Ptashuk | drama film, comedy film | Belarus |
| Korczak | Andrzej Wajda | drama film, historical film, war film, biographical film | United Kingdom, Germany, Poland |
| Koskenlaskijan morsian | Valentin Vaala | — | — |
| Kotha Bangaru Lokam | Srikanth Addala | — | India |
| Krabat | Marco Kreuzpaintner | fantasy film, adventure film | Germany |
| Kraken | Nikolai Lebedev | drama film, monster film, action film, thriller film, science fiction film | Russia |
| Krampus | Michael Dougherty | horror film, comedy horror, Christmas film, black comedy film, parody film | United States |
| Krasavets-muzhchina | Margarita Mikaelyan | musical film | Soviet Union |
| Krasna Malanka | Dmytro Sukholytkyy-Sobchuk | documentary film | Ukraine |
| Krazy House | Flip van der Kuil, Steffen Haars | comedy film, horror film | Netherlands |
| Krishna Gaadi Veera Prema Gaadha | Hanu Raghavapudi | romance film, romantic comedy film | India |
| Kromov | Andrey Razenkov | drama film, historical film | Russia |
| Kronprinsen | Pål Bang-Hansen | drama film | Norway |
| Kronprinsen och tyrannens återkomst | Tord Danielsson | family film | Sweden |
| Krull | Peter Yates | sword and sorcery film, fantasy film, action film, adventure film, science fiction film | United Kingdom, United States, Italy |
| Kto ya? | Klim Shipenko | drama film | Russia |
| Kubi | Takeshi Kitano | drama film, historical film, action film | Japan |
| Kuffs | Bruce A. Evans | comedy film, action film | United States |
| Kukaracha | Siko Dolidze, Keti Dolidze | drama film, detective film | Georgian SSR |
| Kulari ke Pantai | Riri Riza | drama film, comedy film, adventure film | Indonesia |
| Kultur | Edward LeSaint | — | — |
| Kumara Sambhavam | P. Subramaniam | — | India |
| Kumbalangi Nights | Madhu C. Narayanan | comedy film | India |
| Kumki | Prabhu Solomon | drama film | India |
| Kummeli Goldrush | Matti Grönberg | comedy film | Finland |
| Kummeli Stories | Matti Grönberg | — | Finland |
| Kummituskievari | Lasse Pöysti | comedy film | Finland |
| Kun tuomi kukkii | Åke Lindman | drama film | Finland |
| Kundun | Martin Scorsese | war drama, historical drama film, drama film, historical film, war film, biographical film, epic film | United States |
| Kung Fu Hustle | Stephen Chow | martial arts film, action comedy film, parody film | People's Republic of China, Hong Kong |
| Kung Fu Panda 3 | Alessandro Carloni, Jennifer Yuh Nelson | martial arts film, comedy film, action film, children's film, adventure film | People's Republic of China, United States |
| Kung Fu Panda Holiday | Tim Johnson | drama film, family film, comedy film, Christmas film, wuxia, comedy drama | United States |
| Kung Fu Zohra | Mabrouk El Mechri | martial arts film, comedy drama | France |
| Kupała | Uladzimir Yankowski | drama film, historical film, biographical film | Belarus |
| Kurokawa no onna tachi | Matsubara Fumie | documentary film | Japan |
| Kurt Cobain: Montage of Heck | Brett Morgen | biographical film, documentary film | United States |
| Kushi | Shiva Nirvana | romantic comedy film | India |
| Kutsukake Tokijirō | Kiyoshi Saeki | — | — |
| Kutty | Mithran Jawahar | romance film | India |
| Kvinnene | Per Blom | drama film | Norway |
| Kyō Kara Hitman | Takeshi Yokoi | drama film | Japan |