| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | Harry Potter and the Prisoner of Azkaban (2004) | £3,374,330 | £4,944,512 | £36,501,923 | -23% | 3 |
| 2 (2) |  | The Day After Tomorrow (2004) | £1,541,516 | £2,464,413 | £21,067,908 | -17% | 4 |
| 3 (new) |  | Mean Girls (2004) | £1,393,494 | £1,393,494 | £1,393,494 | new | 1 |
| 4 (3) |  | Troy (2004) | £617,553 | £1,069,312 | £16,479,717 | -14% | 6 |
| 5 (new) |  | Jersey Girl (2004) | £226,970 | £226,970 | £226,970 | new | 1 |
| 6 (new) |  | The Cooler (2003) | £151,514 | £151,514 | £151,514 | new | 1 |
| 7 (new) |  | Lakshya (2004) | £122,137 | £122,137 | £122,137 | new | 1 |
| 8 (4) |  | Van Helsing (2004) | £114,702 | £210,131 | £15,019,852 | -37% | 7 |
| 9 (5) |  | Connie and Carla (2004) | £75,228 | £178,208 | £333,582 | -52% | 2 |
| 10 (new) |  | The Whole Ten Yards (2004) | £61,405 | £61,405 | £61,405 | new | 1 |
| 11 (6) |  | Bad Education (2004) | £55,137 | £107,676 | £1,013,225 | -24% | 5 |
| 12 (7) | | Hum Tum (2004) | £43,690 | £77,494 | £523,671 | -30% | 4 |
| 13 (8) |  | Eternal Sunshine of the Spotless Mind (2004) | £43,580 | £88,671 | £4,874,405 | -28% | 8 |
| 14 (9) | | I'm Not Scared (2004) | £38,766 | £69,902 | £111,309 | -6% | 2 |
| 15 (new) | | Intimate Strangers (2004) | £38,592 | £38,592 | £38,592 | new | 1 |