| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | Star Wars Episode III: Revenge of the Sith (2005) | £5,427,091 | £9,942,883 | £24,304,352 | -62% | 2 |
| 2 (new) |  | House of Wax (2005) | £765,008 | £765,008 | £765,008 | new | 1 |
| 3 (new) |  | The Pacifier (2005) | £729,070 | £729,070 | £729,070 | new | 1 |
| 4 (2) |  | Monster-in-Law (2005) | £622,077 | £1,120,871 | £4,211,264 | -45% | 3 |
| 5 (3) |  | Kingdom of Heaven (2005) | £311,113 | £641,215 | £7,011,361 | -52% | 4 |
| 6 (new) |  | Millions (1991) | £293,032 | £293,032 | £293,032 | new | 1 |
| 7 (new) | | It's All Gone Pete Tong (2005) | £274,516 | £274,516 | £274,516 | new | 1 |
| 8 (4) |  | The Hitchhikers Guide to the Galaxy (2005) | £206,876 | £432,210 | £10,050,265 | -60% | 5 |
| 9 (new) |  | Bunty Aur Babli (2005) | £149,640 | £149,640 | £149,640 | new | 1 |
| 10 (5) |  | The Interpreter (2005) | £63,075 | £164,619 | £7,038,688 | -67% | 7 |
| 11 (new) | | The Consequences of Love (2005) | £48,163 | £48,163 | £48,163 | new | 1 |
| 12 (11) |  | Valiant (2005) | £47,909 | £59,369 | £8,152,247 | -46% | 10 |
| 13 (10) |  | A Good Woman (2005) | £43,958 | £118,865 | £457,123 | -54% | 3 |
| 14 (7) |  | The Jacket (2005) | £42,294 | £121,475 | £532,765 | -65% | 3 |
| 15 (6) |  | The Wedding Date (2005) | £37,660 | £122,560 | £3,891,921 | -72% | 6 |