| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | The Matrix Reloaded (2003) | £12,165,276 | £12,165,276 | £12,165,276 | new | 1 |
| 2 (1) |  | X-Men 2 (2003) | £903,221 | £1,555,317 | £18,303,458 | -57% | 4 |
| 3 (2) |  | Kangaroo Jack (2003) | £529,077 | £711,682 | £1,476,599 | -31% | 2 |
| 4 (3) |  | Johnny English (2003) | £351,748 | £499,447 | £18,305,144 | -41% | 7 |
| 5 (4) |  | Old School (2003) | £173,313 | £361,346 | £1,896,078 | -65% | 3 |
| 6 (new) |  | The Hot Chick (2003) | £169,452 | £169,452 | £169,452 | new | 1 |
| 7 (5) |  | Darkness Falls (2003) | £158,173 | £305,907 | £1,441,998 | -63% | 3 |
| 8 (6) |  | How to Lose a Guy In 10 Days (2003) | £157,751 | £286,747 | £6,433,907 | -58% | 6 |
| 9 (8) |  | The Jungle Book 2 (2003) | £152,680 | £170,572 | £7,807,853 | -38% | 7 |
| 10 (7) |  | Phone Booth (2003) | £140,288 | £280,750 | £6,340,355 | -62% | 6 |
| 11 (11) | | Secretary (2003) | £121,899 | £221,545 | £386,863 | -26% | 2 |
| 12 (new) |  | Andaaz (2003) | £101,504 | £101,504 | £101,504 | new | 1 |
| 13 (12) |  | I Capture the Castle (2003) | £69,546 | £143,176 | £500,338 | -39% | 3 |
| 14 (9) |  | Hope Springs (2003) | £59,312 | £153,198 | £958,336 | -74% | 3 |
| 15 (13) |  | Armaan (2003) | £55,446 | £102,400 | £213,524 | -50% | 2 |