| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Along Came Polly (2004) | £2,252,808 | £2,252,808 | £2,252,808 | new | 1 |
| 2 (1) |  | The Haunted Mansion (2004) | £739,770 | £1,106,009 | £6,521,862 | -53% | 3 |
| 3 (3) |  | School of Rock (2004) | £719,938 | £1,083,153 | £8,738,319 | -41% | 4 |
| 4 (2) |  | Cheaper By the Dozen (2003) | £608,479 | £933,224 | £5,816,845 | -54% | 3 |
| 5 (4) |  | Looney Tunes: Back In Action (2003) | £518,644 | £714,665 | £3,987,431 | -47% | 3 |
| 6 (new) |  | The Missing (2004) | £497,573 | £497,573 | £497,573 | new | 1 |
| 7 (5) |  | Somethings Gotta Give (2003) | £490,452 | £917,949 | £5,698,650 | -42% | 4 |
| 8 (6) |  | Lost In Translation (2003) | £393,842 | £661,820 | £8,531,365 | -27% | 8 |
| 9 (8) |  | The Lord of the Rings: The Return of the King (2003) | £313,535 | £504,535 | £59,570,599 | -31% | 11 |
| 10 (7) |  | Big Fish (2003) | £233,121 | £439,902 | £5,703,819 | -51% | 6 |
| 11 (11) |  | Cold Mountain (2003) | £188,308 | £340,333 | £8,647,749 | -32% | 10 |
| 12 (9) |  | Sex Lives of the Potato Men (2004) | £149,465 | £319,602 | £673,328 | -58% | 2 |
| 13 (new) | | House of Sand and Fog (2003) | £132,163 | £132,163 | £132,163 | new | 1 |
| 14 (10) | | Tooth (2004) | £117,043 | £164,273 | £1,201,059 | -62% | 3 |
| 15 (12) |  | The Last Samurai (2004) | £93,188 | £185,350 | £11,688,667 | -51% | 8 |