| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | 2 Fast 2 Furious (2003) | £2,747,875 | £2,747,875 | £2,747,875 | new | 1 |
| 2 (1) |  | The Matrix Reloaded (2003) | £644,219 | £1,384,346 | £30,302,872 | -40% | 5 |
| 3 (3) |  | Identity (2003) | £515,364 | £1,094,727 | £1,814,195 | -28% | 2 |
| 4 (2) |  | Anger Management (2003) | £457,071 | £1,105,994 | £4,636,768 | -46% | 3 |
| 5 (4) |  | Dumb and Dumberer When Harry Met Lloyd (2003) | £290,238 | £601,312 | £1,274,514 | -57% | 2 |
| 6 (new) |  | Basic (2003) | £248,088 | £248,088 | £248,088 | new | 1 |
| 7 (6) |  | Chalte Chalte (2003) | £140,414 | £248,633 | £538,516 | -52% | 2 |
| 8 (5) |  | Bringing Down the House (2003) | £139,666 | £331,876 | £3,342,443 | -58% | 3 |
| 9 (10) |  | Kangaroo Jack (2003) | £82,877 | £108,362 | £3,006,995 | -16% | 6 |
| 10 (11) | | Igby Goes Down (2002) | £59,773 | £152,874 | £239,455 | -31% | 2 |
| 11 (8) |  | X-Men 2 (2003) | £54,050 | £137,064 | £20,500,928 | -59% | 8 |
| 12 (7) |  | A Guy Thing (2003) | £46,809 | £157,274 | £292,230 | -65% | 2 |
| 13 (new) | | To Be and to Have (2003) | £33,314 | £33,314 | £33,314 | new | 1 |
| 14 (12) |  | Johnny English (2003) | £28,565 | £49,282 | £19,209,597 | -47% | 11 |
| 15 (new) |  | Embrassez Qui Vous Voudrez (2003) | £27,609 | £27,609 | £27,609 | new | 1 |