| Title | Director | Cast | Genre | Notes |
|---|
| 16 Years of Alcohol | Richard Jobson | | Drama | |
| | | | |
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| The Actors | Conor McPherson | Michael Caine, Dylan Moran | Comedy/crime | |
| Anything Else | Woody Allen | Woody Allen, Jason Biggs, Stockard Channing, Danny DeVito, Jimmy Fallon, Christina Ricci | Romantic comedy | |
| Baltic Storm | Reuben Leder | Greta Scacchi, Jürgen Prochnow | Thriller | Co-production with Germany |
| Blackball | | | Comedy | |
| Bollywood Queen | Jeremy Wooding | Preeya Kalidas, James McAvoy | Musical | |
| Bright Young Things | Stephen Fry | | Period drama | |
| Calendar Girls | | | Drama | |
| Code 46 | Michael Winterbottom | | Science fiction | |
| Cold Mountain | Anthony Minghella | Jude Law, Nicole Kidman, Ray Winstone | War | Co-production with Romania, Italy and the US |
| Devil's Gate | | | Drama | |
| Festival Express | Bob Smeaton | | Documentary | |
| | | Documentary | |
| Girl with a Pearl Earring | | Colin Firth, Scarlett Johansson, Tom Wilkinson | Drama | |
| The Gospel of John | | | Biblical | |
| The Heart of Me | | | Period drama | |
| Hope Springs | | Mark Herman | Colin Firth, Minnie Driver | Comedy | |
| Imagining Argentina | | | Drama | |
| | Peter O'Toole, Charlotte Rampling | Drama | |
| Johnny English | | | Spy/comedy | |
| Kiss of Life | | | Drama | Screened at the 2003 Cannes Film Festival |
| The Last Horror Movie | | | Horror | |
| Love Actually | | | Romance | |
| Matchstick Men | Ridley Scott | Nicolas Cage, Sam Rockwell, Alison Lohman, Bruce McGill | Black comedy | |
| Monsieur N. | Antoine de Caunes | Philippe Torreton, Richard E. Grant | Historical | Co-production with France |
| The Mother | | | Drama | |
| Out of Bounds | | | Thriller | |
| Owning Mahowny | Richard Kwietniowski | Philip Seymour Hoffman, Minnie Driver, John Hurt | Drama | Co-production with Canada |
| Peter Pan | P.J. Hogan | | Family | Co-production with Australia and the United States |
| The Reckoning | | | Mystery | |
| Revengers Tragedy | Alex Cox | Christopher Eccleston, Derek Jacobi | Drama | |
| Rugrats Go Wild | Norton Virgien, John Eng | E. G. Daily, Nancy Cartwright, Kath Soucie, Dionne Quan, Cheryl Chase, Tim Curry, Lacey Chabert, Bruce Willis | Animated crossover adventure | |
| Seeing Double | | | Comedy/drama/musical | |
| A Short Film About John Bolton | | | Mockumentary | |
| The Statement | | Michael Caine, Tilda Swinton, Jeremy Northam | Drama | |
| Sylvia | | | Biopic | |
| The Tesseract | | | Drama | |
| This Is Not a Love Song | | Michael Colgan, David Bradley, John Henshaw | Thriller | |
| To Kill a King | Mike Barker | Tim Roth, Dougray Scott | Historical | Entered into the 25th Moscow International Film Festival |
| Touching the Void | | Brendan Mackey, Nicholas Aaron, Ollie Ryall | Documentary | |
| Triads, Yardies and Onion Bhajees | | | Crime/thriller | |
| The Trouble with Men and Women | | | Drama | |
| The Tulse Luper Suitcases | | | | Entered into the 2003 Cannes Film Festival |
| Wondrous Oblivion | | Sam Smith, Delroy Lindo | Sports | |
| Young Adam | | | Thriller/drama | | |
