| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Harry Potter and the Goblet of Fire (2005) | £14,933,901 | £14,933,901 | £14,933,901 | new | 1 |
| 2 (1) |  | In Her Shoes (2005) | £865,769 | £1,542,258 | £2,879,434 | -35% | 2 |
| 3 (4) |  | The Constant Gardener (2005) | £737,138 | £1,380,621 | £2,385,262 | -27% | 2 |
| 4 (2) |  | Nanny Mcphee (2005) | £637,277 | £909,866 | £15,394,793 | -51% | 5 |
| 5 (3) |  | Wallace & Gromit: The Curse of the Were-Rabbit (2005) | £505,518 | £812,257 | £31,208,681 | -55% | 6 |
| 6 (7) |  | Kiss, Kiss! Bang Bang (2005) | £309,874 | £577,631 | £1,036,457 | -32% | 2 |
| 7 (5) |  | Saw II (2005) | £282,142 | £644,549 | £6,966,594 | -63% | 4 |
| 8 (new) |  | The Libertine (2005) | £278,482 | £278,482 | £278,482 | new | 1 |
| 9 (6) |  | The Brother's Grimm (2005) | £172,686 | £387,342 | £2,316,761 | -71% | 3 |
| 10 (8) |  | The Legend of Zorro (2005) | £70,195 | £200,662 | £4,002,150 | -83% | 4 |
| 11 (10) |  | Corpse Bride (2005) | £56,496 | £137,609 | £4,782,636 | -81% | 5 |
| 12 (9) |  | Elizabethtown (2005) | £49,539 | £189,116 | £1,566,930 | -85% | 3 |
| 13 (11) | | Broken Flowers (2005) | £47,668 | £125,176 | £1,833,106 | -64% | 5 |
| 14 (new) | | Factotum (2005) | £37,100 | £37,100 | £37,100 | new | 1 |
| 15 (14) |  | Kinky Boots (2005) | £37,079 | £84,208 | £3,003,284 | -60% | 6 |