| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Wimbledon (2004) | £1,699,096 | £1,699,096 | £1,699,096 | new | 1 |
| 2 (1) |  | Collateral (2004) | £1,429,574 | £2,560,973 | £4,799,173 | -36% | 2 |
| 3 (new) |  | Hero (2002) | £1,005,571 | £1,005,571 | £1,005,571 | new | 1 |
| 4 (4) |  | Dodgeball: A True Underdog Story (2004) | £584,739 | £884,175 | £8,753,570 | -24% | 5 |
| 5 (3) |  | The Terminal (2004) | £479,933 | £865,341 | £5,563,227 | -38% | 4 |
| 6 (2) |  | Open Water (2004) | £446,636 | £843,549 | £4,445,672 | -49% | 3 |
| 7 (new) |  | Cellular (2004) | £427,365 | £427,365 | £427,365 | new | 1 |
| 8 (new) |  | The Punisher (2004) | £186,017 | £186,017 | £186,017 | new | 1 |
| 9 (10) |  | Garfield (2004) | £178,139 | £193,959 | £9,163,239 | -7% | 9 |
| 10 (9) |  | A Cinderella Story (2004) | £161,648 | £188,981 | £3,530,362 | -22% | 6 |
| 11 (5) |  | Hellboy (2004) | £150,893 | £285,626 | £3,005,789 | -56% | 4 |
| 12 (11) | | The Motorcycle Diaries (2004) | £140,659 | £283,315 | £1,950,016 | -20% | 5 |
| 13 (7) |  | The Bourne Supremacy (2004) | £137,831 | £287,060 | £11,396,052 | -50% | 7 |
| 14 (6) |  | Anchorman: The Legend of Ron Burgundy (2004) | £122,552 | £289,182 | £1,465,538 | -63% | 3 |
| 15 (12) |  | Super Size Me (2004) | £118,734 | £227,283 | £809,046 | -24% | 3 |