| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | The Recruit (2003) | £770,014 | £1,351,400 | £2,330,551 | -21% | 2 |
| 2 (new) |  | Shanghai Knights (2003) | £749,655 | £749,655 | £749,655 | new | 1 |
| 3 (new) |  | A Man Apart (2003) | £527,730 | £527,730 | £527,730 | new | 1 |
| 4 (new) |  | Blue Crush (2003) | £491,419 | £491,419 | £491,419 | new | 1 |
| 5 (2) |  | Just Married (2003) | £483,588 | £766,510 | £2,719,274 | -20% | 3 |
| 6 (4) |  | Maid In Manhattan (2003) | £370,165 | £639,022 | £7,497,243 | -31% | 5 |
| 7 (3) |  | The Core (2003) | £322,938 | £619,319 | £1,202,557 | -45% | 2 |
| 8 (5) |  | Cradle 2 The Grave (2003) | £220,314 | £415,864 | £790,802 | -41% | 2 |
| 9 (7) |  | The Rules of Attraction (2003) | £194,569 | £364,098 | £591,629 | -14% | 2 |
| 10 (6) |  | Chicago (2003) | £140,265 | £316,818 | £15,927,431 | -42% | 15 |
| 11 (13) |  | The Pianist (2003) | £114,269 | £214,913 | £2,023,026 | -7% | 5 |
| 12 (9) |  | Evelyn (2003) | £100,722 | £276,489 | £1,088,399 | -51% | 3 |
| 13 (10) |  | The Ring (2003) | £98,327 | £209,203 | £9,455,478 | -52% | 7 |
| 14 (11) |  | The Life of David Gale (2003) | £84,383 | £220,509 | £2,207,906 | -56% | 4 |
| 15 (14) |  | The Hours (2002) | £84,270 | £192,589 | £4,311,523 | -25% | 8 |