| U Turn | Oliver Stone | romantic comedy film, drama film, thriller film, crime film | France, United States |
| U2 3D | Catherine Owens, Mark Pellington | documentary film | United States |
| Udaan | Vikramaditya Motwane | coming-of-age film, drama film | India |
| Ue o muite arukô | Toshio Masuda | — | Japan |
| Ugly | Anurag Kashyap | drama film, thriller film, crime film | India |
| UglyDolls | Kelly Asbury | comedy film, jukebox musical, musical film | United States |
| Uhm Bok-dong | Kim Yu Sung | drama film, sport film | South Korea |
| Uka-Uka the Movie: Nini Tulang | — | horror film | Indonesia |
| Ukraine in Flames | Yuliya Solntseva, Oleksandr Dovzhenko | propaganda film, documentary film | Soviet Union |
| Ulan | Irene Emma Villamor | romance film | Philippines |
| Ulee's Gold | Victor Nuñez | drama film | United States |
| Ultimatum | Jean Pierre Lefebvre | fiction film | Canada |
| Ultimul cartuş | Sergiu Nicolaescu | action film | Romania |
| Ultraman | Akio Jissōji | science fiction film | Japan |
| Ultraman: Rising | Shannon Tindle | superhero film, fantasy film, action film, science fiction film | Japan, United States |
| Uma | Srijit Mukherji | drama film | India |
| Umeyete li vy zhit? | Oleksandr Muratov | melodrama | Soviet Union |
| Umi yori mo Mada Fukaku | Hirokazu Kore-eda | drama film | Japan |
| Umma | Kunchacko | drama film | India |
| Un amore su misura | Renato Pozzetto | comedy film | Italy |
| Un caso d'incoscienza | Emidio Greco | drama film | Italy |
| Un gosse de la butte | Maurice Delbez | comedy drama | France |
| Un lac | Philippe Grandrieux | drama film | France |
| Un Natale al Sud | Federico Marsicano | comedy film | Italy |
| Un parell d'ous | Francesc Bellmunt | musical comedy | Spain |
| Una de dos | Marcel Sisniega Campbell | romance film, drama film, comedy film | Mexico |
| Unabomber | Janus Metz Pedersen | drama film, thriller film, biographical film | United States |
| Unbeatable Youth | Wing-Kin Yip | martial arts film, action film | Hong Kong |
| Unbelievable Adventures of Italians in Russia | Franco Prosperi, Eldar Ryazanov | comedy film, treasure hunt film, adventure film, crime film | Soviet Union, Italy |
| Unbong | — | action film | South Korea |
| Uncensored | Anthony Asquith | — | — |
| Uncertain Glory | Raoul Walsh | — | — |
| Unchangeables | Herwin Novianto | family drama film | Indonesia |
| Uncharted Channels | Henry King | — | — |
| Uncle Donald's Ants | Jack Hannah | — | United States |
| Uncle Drew | Charles Stone III | basketball film, comedy film | United States |
| Uncle Markus the Storyteller | Vilho Syrjälä, Eino Itänen | children's film | Finland |
| Uncle Martino | — | — | Australia |
| Uncle's Paradise | Imaoka Shinji | pink film | Japan |
| Uncommon Valor | Ted Kotcheff | drama film, action film, war film | United States |
| Unconditional Love | P. J. Hogan | LGBTQ-related film, musical film, crime film | United States |
| Under 18 | Archie Mayo | — | — |
| Under Age | Larry Buchanan | drama film | United States |
| Under California: The Limit of Time | Carlos Bolado | road movie | Mexico |
| Under en steinhimmel | Igor Maslennikov, Knut Andersen | drama film, war film | Soviet Union, Norway |
| Under Heaven | Dalmira Tilepbergen | drama film | Kyrgyzstan |
| Under Siege | Andrew Davis | action film, pirate film, thriller film | United States |
| Under Ten Flags | Duilio Coletti, Carlo Lizzani | drama film, war film | United States, Italy |
| Under the Bazaar | Reza Safaei | drama film, crime film | Iran |
| Under the Black Eagle | W. S. Van Dyke | — | — |
| Under the Bridge | Chen Bai | romantic drama film | People's Republic of China |
| Under the Bridges | Helmut Käutner | drama film | Germany |
| Under the Cherry Moon | Prince | romance film, romantic comedy film, musical film | United States |
| Under the Chinese Restaurant | Bruno Bozzetto | comedy film | Italy |
| Under the Gun | Ted Tetzlaff | film noir, crime film | United States |
| Under the North Star II | Timo Koivusalo | drama film | Finland |
| Under the Pampas Moon | James Tinling | Western film | United States |
| Under the Sand | François Ozon | drama film | France |
| Under the Upturned Moon | Ēriks Lācis | drama film | Soviet Union |
| Under the Volcano | Damian Kocur | drama film | Poland |
| Under the Yoke | J. Gordon Edwards | — | — |
| Under Two Flags | J. Gordon Edwards | — | — |
| Underbara kvinnor vid vatten | Claes Olsson | drama film, historical film | Germany, Finland, Sweden |
| Undercover | Arantxa Echevarría | drama film, thriller film | Spain |
| Undercover | John Stockwell | drama film, crime film | United States |
| Underdogs | Juan J. Campanella | romantic comedy film, children's film, association football film, adventure film | Spain, United States, Argentina, India |
| Underground | Emir Kusturica | drama film, comedy film, tragicomedy, war film | France, Germany, Czech Republic, Bulgaria, Hungary, Yugoslavia, Federal Republic of Yugoslavia |
| Underground | Anthony Asquith | — | — |
| Underneath the Arches | Redd Davis | — | — |
| Undersea Kingdom | B. Reeves Eason, Joseph Kane | fantasy film, science fiction film | United States |
| Undertow | William Castle | — | — |
| Underworld: Evolution | Len Wiseman | fantasy film, girls with guns, action film, horror film, vampire film, thriller film, werewolf film | United States |
| Undisputed III: Redemption | Isaac Florentine | martial arts film, drama film, action film, thriller film, prison film | United States |
| Uneasy Terms | Vernon Sewell | — | — |
| Unfaithful Mornings | François Bouvier, Jean Beaudry | fiction film, drama film | Canada |
| Unfaithfully Yours | Preston Sturges | — | — |
| Unforgivable | Julia Ford | drama film | United Kingdom |
| Unforgiven | Clint Eastwood | drama film, Western film, crime film | United States |
| Unfriended | Levan Gabriadze | horror film, thriller film, ghost film, screenlife | United States |
| Unfriended: Dark Web | Stephen Susco | horror film, screenlife | United States |
| Ungen | Rasmus Breistein | drama film | Sweden |
| Unico nell'isola della magia | — | animated film | Japan |
| Union County | Adam Meeks | drama film | United States |
| Union Station | Rudolph Maté | drama film, film noir, thriller film, crime film | United States |
| Universal i faraona | Ventura Pons | documentary film | Spain |
| Universal Language | Matthew Rankin | comedy drama | Canada |
| Universal Soldier | Roland Emmerich | biopunk, action film, science fiction film | United States |
| Universal Soldier: Regeneration | John Hyams | biopunk, action film, dystopian film, science fiction film | United States |
| Universal Soldier: The Return | Mic Rodgers | martial arts film, biopunk, action film, science fiction film | United States |
| Unknown Treasures | Agnė Marcinkevičiūtė | family film, adventure film | Lithuania |
| Unlikely Revolutionaries | Lucio Pellegrini | comedy film | Italy |
| Unmade Beds | Alexis Dos Santos | drama film, comedy drama | United Kingdom |
| Unmarried Daughters | Carl Boese | — | — |
| Unna and Nuuk | Saara Cantell | fantasy film, children's film | Finland |
| Unnal Mudiyum Thambi | K. Balachander | drama film | India |
| Uno | John Andreas Andersen, Aksel Hennie | drama film | Norway |
| Unreal Boys | Karl Andersson | documentary film | Germany |
| Unspeakable | Chad Ferrin | exploitation film, LGBTQ-related film, crime film | United States |
| Unsung Hero | Richard L. Ramsey, Joel Smallbone | Christian film, drama film | United States |
| Untamed | Henry King | romance film, drama film, adventure film | United States |
| Untamed Frontier | Hugo Fregonese | Western film | United States |
| Unterwegs zu Lenin | Lucia Ochrimenko, Günter Reisch | historical film | Soviet Union, East Germany |
| Until Dawn | David F. Sandberg | horror film | United States |
| Until Death Do Us Part | Heiner Carow | romance film, drama film | East Germany |
| Until We Meet Again | Gustav Ucicky | — | — |
| Untitled Home Invasion Romance | Jason Biggs | thriller film, black comedy film | Canada, United States |
| Untraceable | Gregory Hoblit | horror film, thriller film, crime film | United States |
| Unwelcome | Jon Wright | folk horror film | United Kingdom, Ireland |
| Unwritten Obsession | David Martin-Porras | thriller film | United States |
| Up | Pete Docter, Bob Peterson | fantasy film, comedy film, adventure film | United States |
| Up Against Them All | Roberto Moreira | comedy film | Brazil |
| Up and at 'Em | William A. Seiter | — | — |
| Up for the Derby | Maclean Rogers | — | — |
| Up in Arms | Elliott Nugent | musical film | United States |
| Up in Mabel's Room | E. Mason Hopper | — | — |
| Up Next: Silvio Santos | Cris D'Amato | biographical film | Brazil |
| Up the Ladder | Edward Sloman | — | — |
| Up the Sandbox | Irvin Kershner | comedy film, musical film | United States |
| Upgrade | Leigh Whannell | cyberpunk, action film, horror film, dystopian film, thriller film, science fiction film | Australia |
| Upgraded | Carlson Young | romance film, comedy film | United States |
| Upon the Magic Roads | Oleg Pogodin | fantasy film, children's film, adventure film | Russia |
| Uppi Dada M.B.B.S. | D. Rajendra Babu | comedy drama | India |
| Upstage | Monta Bell | — | — |
| Uramisten | Péter Gárdos | drama film | Hungary |
| Urchin | Harris Dickinson | drama film | United Kingdom |
| Us Two | Claude Lelouch | drama film | France, Canada |
| Utlänningar: Del II - Le Rom | Peter Nestler | documentary film | Sweden |
| Uuno Turhapuro | Ere Kokkonen | comedy film | Finland |
| Uzumaki | Andrey Higchinsky | fantasy film, horror film | Japan |
| Übergang | Peter Badel, Chris Wright | documentary film | Germany |