| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | The Interpreter (2005) | £1,589,829 | £1,589,829 | £1,589,829 | new | 1 |
| 2 (new) |  | The Amityville Horror (2005) | £1,339,417 | £1,339,417 | £1,339,417 | new | 1 |
| 3 (1) |  | Sahara (2005) | £829,122 | £1,430,491 | £2,801,068 | -40% | 2 |
| 4 (3) |  | Valiant (2005) | £524,441 | £803,754 | £6,773,076 | -42% | 4 |
| 5 (6) |  | Hitch (2005) | £483,392 | £841,679 | £16,395,161 | -37% | 6 |
| 6 (5) |  | Be Cool (2005) | £467,887 | £812,840 | £3,620,849 | -41% | 3 |
| 7 (4) |  | Robots (2005) | £434,399 | £692,824 | £11,204,021 | -49% | 5 |
| 8 (2) |  | The Ring Two (2005) | £407,691 | £820,219 | £4,878,853 | -58% | 3 |
| 9 (7) |  | Miss Congeniality 2: Armed and Fabulous (2005) | £304,467 | £581,221 | £5,008,354 | -44% | 4 |
| 10 (10) |  | Downfall (2005) | £193,214 | £318,915 | £797,230 | 15% | 3 |
| 11 (8) |  | Constantine (2005) | £151,384 | £333,976 | £6,458,079 | -52% | 5 |
| 12 (12) | | Bullet Boy (2005) | £81,183 | £157,403 | £297,735 | -42% | 2 |
| 13 (11) |  | The Assassination of Richard Nixon (2005) | £80,311 | £174,406 | £332,162 | -49% | 2 |
| 14 (9) |  | Hostage (2005) | £78,185 | £176,338 | £3,948,902 | -56% | 6 |
| 15 (13) |  | Poohs Heffalump Movie (2005) | £75,796 | £104,727 | £1,357,418 | -43% | 5 |