| U krutogo yara | Oleksandr Muratov, Kira Muratova | — | Soviet Union |
| U Samogo Belogo Morya | — | drama film | Russia |
| U Turn | Oliver Stone | romantic comedy film, drama film, thriller film, crime film | France, United States |
| U.S. Marshals | Stuart Baird | action film, thriller film, crime film | United States |
| U2 3D | Catherine Owens, Mark Pellington | documentary film | United States |
| Ubiytsa | Sergey Martyanov | drama film, thriller film | Soviet Union |
| Udaan | Vikramaditya Motwane | coming-of-age film, drama film | India |
| Ugly Melanie | Allan Mauduit, Jean-Patrick Benes | comedy film | France |
| Ugra Narasimham | Dasari Narayana Rao | drama film, action film | India |
| Ukhar Kupets | Vasily Goncharov | — | — |
| Ukhodya - ukhodi | Viktor Tregubovich | comedy film | Soviet Union |
| Ukrainian Sheriffs | Roman Bondarchuk | documentary film | Germany, Latvia, Ukraine |
| Ulan | Tolomush Okeyev | drama film, tragedy | Soviet Union |
| Ullaasam | J.D. & Jerry | romantic thriller | India |
| Ultimatum | Jean Pierre Lefebvre | fiction film | Canada |
| Ultraman Geed the Movie | Koichi Sakamoto | — | Japan |
| Ultraman Ginga S: Showdown! Ultra 10 Warriors!! | Koichi Sakamoto | — | Japan |
| Ultraman: Rising | Shannon Tindle | superhero film, fantasy film, action film, science fiction film | Japan, United States |
| Ulysses | Mario Camerini | — | — |
| Um ano de independência | Fernando d’Almeida e Silva, Luís Carlos Patraquim | documentary film | Mozambique |
| Umeyete li vy zhit? | Oleksandr Muratov | melodrama | Soviet Union |
| Umma | Kunchacko | drama film | India |
| Un bebé de París | Manuel Romero | — | — |
| Un drama en Bilbao | Alejandro Olabarria | — | — |
| Un giorno speciale | Francesca Comencini | drama film | Italy |
| Un lac | Philippe Grandrieux | drama film | France |
| Un parell d'ous | Francesc Bellmunt | musical comedy | Spain |
| Un sorriso, uno schiaffo, un bacio in bocca | Mario Morra | comedy film | Italy |
| Un trou dans la jambe | Martine Asselin | documentary film | Canada |
| Un'altra vita | Carlo Mazzacurati | comedy film, comedy drama | Italy |
| Un'estate ai Caraibi | Carlo Vanzina | comedy film | Italy |
| Una voce nel tuo cuore | Alberto D'Aversa | drama film | Italy |
| Unbeatable | Dante Lam | drama film, action film, boxing film | People's Republic of China, Hong Kong |
| Unbelievable Adventures of Italians in Russia | Franco Prosperi, Eldar Ryazanov | comedy film, treasure hunt film, adventure film, crime film | Soviet Union, Italy |
| Unbroken Glass | — | documentary film | United States |
| Unchangeables | Herwin Novianto | family drama film | Indonesia |
| Uncle Buck | John Hughes | drama film, comedy film, comedy drama | United States |
| Uncle Frank | Alan Ball | LGBTQ-related film, road movie, comedy drama | United States |
| Uncle Kurban Visits Beijing | Dong Ling, Li Chensheng | comedy drama | People's Republic of China |
| Uncle Markus the Storyteller | Vilho Syrjälä, Eino Itänen | children's film | Finland |
| Uncle Martino | — | — | Australia |
| Uncle Tom's Cabin | Harry A. Pollard | — | — |
| Uncle Tom's Cabin | J. Searle Dawley | — | — |
| Uncovered: Tales of the Naked Theater Part 2 | — | pink film | Japan |
| Undead or Alive | W. Glasgow Phillips | comedy horror, zombie film | United States |
| Under Control | Vincent Kok | martial arts film, comedy film, action film, romantic comedy | Hong Kong |
| Under Crimson Skies | Rex Ingram | — | — |
| Under Fiesta Stars | Frank McDonald | — | — |
| Under Fire | Roger Spottiswoode | political thriller film, drama film, war film, tragedy | United States |
| Under Ten Flags | Duilio Coletti, Carlo Lizzani | drama film, war film | United States, Italy |
| Under the Chinese Restaurant | Bruno Bozzetto | comedy film | Italy |
| Under the Greenwood Tree | Harry Lachman | — | — |
| Under the Greenwood Tree | Émile Chautard | — | — |
| Under the North Star II | Timo Koivusalo | drama film | Finland |
| Under the Pampas Moon | James Tinling | Western film | United States |
| Under the Top | Donald Crisp | — | — |
| Under the Volcano | Damian Kocur | drama film | Poland |
| Under Two Flags | Frank Lloyd, Otto Brower | romance film, adventure film | United States |
| Under Western Stars | Joseph Kane | Western film, action film, musical film | United States |
| Under Your Hat | Maurice Elvey | — | — |
| Underclassman | Marcos Siega | action film, action comedy film, comedy drama, crime film | United States |
| Undercover | Arantxa Echevarría | drama film, thriller film | Spain |
| Underdog | Ronnie Sandahl | drama film | Norway, Sweden |
| Underground | Anthony Asquith | — | — |
| Underwater | William Eubank | drama film, horror film, adventure film, action thriller | United States |
| Underwater! | John Sturges | — | — |
| Underworld | Josef von Sternberg | — | — |
| Underworld: Rise of the Lycans | Patrick Tatopoulos | fantasy film, horror film, vampire film, thriller film, werewolf film | United States |
| Une nuit | Alex Lutz | romance film, drama film | France, Belgium |
| Uneasy Terms | Vernon Sewell | — | — |
| Unfaithful | Adrian Lyne | drama film, erotic thriller, erotic film, crime film | United States |
| Unfaithfully Yours | Howard Zieff | romantic comedy | United States |
| Unfaithfully Yours | Preston Sturges | — | — |
| Unfinished Love | — | romance film, drama film | United States |
| Unforgotten | Aylin Baykal | drama film, horror film | United States |
| Unidentified Person | Natalya Zbandut | — | Soviet Union |
| Union Depot | Alfred Edward Green | — | — |
| Union of Salvation | Andrei Kravchuk | drama film, adventure film, war film, epic film, historical drama | Russia |
| Union Pacific | Cecil B. DeMille | drama film, Western film | United States |
| Unit 7 | Alberto Rodríguez Librero | drama film, action film | Spain |
| Universal Soldier: The Return | Mic Rodgers | martial arts film, biopunk, action film, science fiction film | United States |
| Unlocked | Michael Apted | action film, thriller film | United Kingdom, United States |
| Unnaipol Oruvan | Chakri Toleti | thriller film | India |
| Unreal Boys | Karl Andersson | documentary film | Germany |
| Unstoppable | Darren Doane | documentary film | United States |
| Untamed | Henry King | romance film, drama film, adventure film | United States |
| Untamed | Mikio Naruse | drama film | Japan |
| Unter deutschen Betten | Jan Fehse | comedy film | Germany |
| Unternehmen Michael | Karl Ritter | — | — |
| Unterwegs zu Lenin | Lucia Ochrimenko, Günter Reisch | historical film | Soviet Union, East Germany |
| Until September | Richard Marquand | romance film, drama film | France, United States |
| Until We Meet Again | Tadashi Imai | — | — |
| Up and Down | Jan Hřebejk | drama film, comedy film | Czech Republic |
| Up for Murder | Monta Bell | drama film | United States |
| Up for the Derby | Maclean Rogers | — | — |
| Up in Mabel's Room | Allan Dwan | — | — |
| Up in the Sky | Petter Lennstrand | comedy film | Sweden |
| Upside Down | Lawrence Clement Windom | — | — |
| Upstage | Monta Bell | — | — |
| Uramisten | Péter Gárdos | drama film | Hungary |
| Urban Legends: Final Cut | John Ottman | teen film, mystery film, horror film, slasher film | Canada, United States |
| Urban Myths | — | horror film, anthology film | South Korea |
| Uriyadi 2 | Vijay Kumar | political thriller film | India |
| Urodziny młodego warszawiaka | Czesław Petelski, Ewa Petelska | war film | Poland |
| Utae! Love Song Furete G Kôdo | — | pink film | Japan |
| Utah Wagon Train | Philip Ford | Western film | United States |
| Uuno Turhapuro | Ere Kokkonen | comedy film | Finland |
| Uzhaippali | P. Vasu | soundtrack | India |
| Übergang | Peter Badel, Chris Wright | documentary film | Germany |