| Title | Director | Cast | Genre | Notes |
| 16 Years of Alcohol | Richard Jobson | Kevin McKidd, Iain De Caesteker, Susan Lynch | Drama | |
| 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 | Mel Smith | Paul Kaye, Alice Evans | Comedy | |
| Bollywood Queen | Jeremy Wooding | Preeya Kalidas, James McAvoy | Musical | |
| Bright Young Things | Stephen Fry | Emily Mortimer, Stephen Campbell Moore | Period drama | |
| Calendar Girls | Nigel Cole | Julie Walters, Helen Mirren | Drama | |
| Code 46 | Michael Winterbottom | Tim Robbins, Samantha Morton | Science fiction | |
| Cold Mountain | Anthony Minghella | Jude Law, Nicole Kidman, Ray Winstone | War | Co-production with Romania, Italy and the US |
| Devil's Gate | Stuart St. Paul | Laura Fraser, Callum Blue | Drama | |
| Festival Express | Bob Smeaton | Janis Joplin, Grateful Dead, The Band | Documentary | |
| Game Over: Kasparov and the Machine | Vikram Jayanti | Garry Kasparov | Documentary | |
| Girl with a Pearl Earring | Peter Webber | Colin Firth, Scarlett Johansson, Tom Wilkinson | Drama | |
| The Gospel of John | Philip Saville | Henry Ian Cusick, Stuart Bunce | Biblical | |
| The Heart of Me | Thaddeus O'Sullivan | Helena Bonham Carter, Paul Bettany | Period drama | |
| Hope Springs | Mark Herman | Colin Firth, Minnie Driver | Comedy | |
| Imagining Argentina | Christopher Hampton | Antonio Banderas, Emma Thompson | Drama | |
| Imperium: Augustus | Roger Young | Peter O'Toole, Charlotte Rampling | Drama | |
| Johnny English | Peter Howitt | Rowan Atkinson, John Malkovich | Spy/comedy | |
| Kiss of Life | Emily Young | Gemma Jones | Drama | Screened at the 2003 Cannes Film Festival |
| The Last Horror Movie | Julian Richards | Kevin Howarth, Mark Stevenson | Horror | |
| Love Actually | Richard Curtis | Alan Rickman, Bill Nighy, Emma Thompson, Ant & Dec | 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 | Roger Michell | Anne Reid, Peter Vaughan, Daniel Craig | Drama | |
| Out of Bounds | Merlin Ward | Sophia Myles, Sophie Ward | Thriller | |
| Owning Mahowny | Richard Kwietniowski | Philip Seymour Hoffman, Minnie Driver, John Hurt | Drama | Co-production with Canada |
| Peter Pan | P.J. Hogan | Jeremy Sumpter, Jason Isaacs | Family | Co-production with Australia and the United States |
| The Reckoning | Paul McGuigan | Paul Bettany, Marián Aguilera, Trevor Steedman | 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 | Nigel Dick | Tina Barrett, Jon Lee, Bradley McIntosh, Jo O'Meara, Hannah Spearritt, Rachel Stevens | Comedy/drama/musical | |
| A Short Film About John Bolton | Neil Gaiman | John O'Mahony, Marcus Brigstocke | Mockumentary | |
| The Statement | Norman Jewison | Michael Caine, Tilda Swinton, Jeremy Northam | Drama | |
| Sylvia | Christine Jeffs | Gwyneth Paltrow, Daniel Craig | Biopic | |
| The Tesseract | Oxide Pang | Jonathan Rhys-Meyers, Saskia Reeves | Drama | |
| This Is Not a Love Song | Bille Eltringham | 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 | Kevin MacDonald | Brendan Mackey, Nicholas Aaron, Ollie Ryall | Documentary | |
| Triads, Yardies and Onion Bhajees | Sarjit Bains | Dave Courtney, Manish Patel | Crime/thriller | |
| The Trouble with Men and Women | Tony Fisher | Joseph McFadden, Kate Ashfield | Drama | |
| The Tulse Luper Suitcases | Peter Greenaway | | | Entered into the 2003 Cannes Film Festival |
| Wondrous Oblivion | Paul Morrison | Sam Smith, Delroy Lindo | Sports | |
| Young Adam | David Mackenzie | Ewan McGregor, Tilda Swinton, Peter Mullan | Thriller/drama | |
