| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | In Her Shoes (2005) | £1,337,176 | £1,337,176 | £1,337,176 | new | 1 |
| 2 (1) |  | Nanny Mcphee (2005) | £1,313,524 | £1,733,748 | £14,484,927 | -21% | 4 |
| 3 (2) |  | Wallace & Gromit: The Curse of the Were-Rabbit (2005) | £1,120,521 | £1,642,789 | £30,396,424 | -31% | 5 |
| 4 (new) |  | The Constant Gardener (2005) | £1,004,641 | £1,004,641 | £1,004,641 | new | 1 |
| 5 (3) |  | Saw II (2005) | £761,996 | £1,452,970 | £6,322,045 | -38% | 3 |
| 6 (4) |  | The Brother's Grimm (2005) | £594,638 | £1,009,706 | £1,929,419 | -35% | 2 |
| 7 (new) |  | Kiss, Kiss! Bang Bang (2005) | £458,826 | £458,826 | £458,826 | new | 1 |
| 8 (5) |  | The Legend of Zorro (2005) | £420,282 | £681,849 | £3,801,488 | -38% | 3 |
| 9 (6) |  | Elizabethtown (2005) | £320,383 | £709,210 | £1,377,814 | -52% | 2 |
| 10 (7) |  | Corpse Bride (2005) | £294,925 | £484,784 | £4,645,027 | -37% | 4 |
| 11 (9) | | Broken Flowers (2005) | £133,557 | £306,208 | £1,707,930 | -46% | 4 |
| 12 (10) |  | Sky High (2005) | £126,311 | £150,564 | £2,124,364 | -30% | 4 |
| 13 (8) | | Garam Masala (2005) | £104,076 | £181,731 | £473,764 | -64% | 2 |
| 14 (re) |  | Kinky Boots (2005) | £92,138 | £92,138 | £2,919,076 | RE | 5 |
| 15 (12) |  | Into the Blue (2005) | £89,463 | £179,538 | £1,712,797 | -46% | 4 |