| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | The Incredible Hulk (2008) | £1,870,800 | £3,052,618 | £6,306,341 | -43% | 2 |
| 2 (3) |  | Indiana Jones and the Kingdom of the Crystal Skull (2008) | £1,457,710 | £2,234,387 | £37,821,273 | -17% | 5 |
| 3 (2) |  | Sex and the City (2008) | £1,210,550 | £2,821,094 | £23,143,851 | -32% | 4 |
| 4 (new) |  | Adulthood (2008) | £1,203,319 | £1,203,319 | £1,203,319 | new | 1 |
| 5 (4) |  | The Happening (2008) | £834,624 | £1,618,455 | £3,250,510 | -49% | 2 |
| 6 (5) |  | Superhero Movie (2008) | £502,329 | £708,423 | £2,394,925 | -3% | 3 |
| 7 (new) |  | Teeth (2007) | £235,658 | £235,658 | £235,658 | new | 1 |
| 8 (6) |  | Gone Baby Gone (2008) | £199,642 | £400,644 | £1,280,377 | -19% | 3 |
| 9 (new) |  | The Edge of Love (2008) | £180,837 | £180,837 | £180,837 | new | 1 |
| 10 (new) | | The Ruins (2008) | £123,507 | £123,507 | £123,507 | new | 1 |
| 11 (7) |  | Prom Night (2008) | £110,955 | £261,845 | £1,278,506 | -55% | 3 |
| 12 (9) |  | Iron Man (2008) | £109,231 | £170,749 | £17,139,880 | -15% | 8 |
| 13 (14) |  | Nims Island (2008) | £93,032 | £103,207 | £3,791,094 | 28% | 8 |
| 14 (8) |  | What Happens In Vegas... (2008) | £84,264 | £166,456 | £7,841,544 | -37% | 7 |
| 15 (10) |  | Mongol (2008) | £82,733 | £172,197 | £608,715 | -36% | 3 |