| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Open Water (2004) | £1,970,176 | £1,970,176 | £1,970,176 | new | 1 |
| 2 (1) |  | The Terminal (2004) | £1,111,836 | £1,891,699 | £3,342,867 | -23% | 2 |
| 3 (2) |  | Dodgeball: A True Underdog Story (2004) | £991,749 | £1,591,591 | £6,702,919 | -14% | 3 |
| 4 (3) |  | Hellboy (2004) | £632,204 | £1,070,601 | £2,128,976 | -40% | 2 |
| 5 (new) |  | Anchorman: The Legend of Ron Burgundy (2004) | £555,864 | £555,864 | £555,864 | new | 1 |
| 6 (5) |  | The Bourne Supremacy (2004) | £459,979 | £777,367 | £10,609,616 | -16% | 5 |
| 7 (4) |  | The Village (2004) | £452,888 | £827,340 | £9,508,403 | -35% | 4 |
| 8 (new) | | Wicker Park (2004) | £316,722 | £316,722 | £316,722 | new | 1 |
| 9 (new) |  | Super Size Me (2004) | £264,843 | £264,843 | £264,843 | new | 1 |
| 10 (9) | | The Motorcycle Diaries (2004) | £242,654 | £448,895 | £1,323,015 | 8% | 3 |
| 11 (8) |  | A Cinderella Story (2004) | £237,102 | £327,583 | £3,101,418 | -14% | 4 |
| 12 (7) |  | I, Robot (2004) | £236,712 | £416,867 | £17,572,456 | -33% | 6 |
| 13 (6) |  | The Chronicles of Riddick (2004) | £207,430 | £470,438 | £2,784,552 | -54% | 3 |
| 14 (10) |  | Garfield (2004) | £205,961 | £250,801 | £8,762,150 | 5% | 7 |
| 15 (new) | | Dil Ne Jise Apna Kaha (2004) | £85,185 | £85,185 | £85,185 | new | 1 |