| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | Quantum of Solace (2008) | £9,221,744 | £16,066,406 | £31,450,623 | -40% | 2 |
| 2 (2) |  | High School Musical 3: Senior Year (2008) | £1,518,469 | £2,175,045 | £19,957,468 | -45% | 3 |
| 3 (4) |  | Ghost Town (2008) | £714,965 | £1,105,748 | £4,539,265 | -9% | 3 |
| 4 (3) |  | Saw V (2008) | £493,123 | £986,074 | £5,617,718 | -48% | 3 |
| 5 (new) |  | Pride and Glory (2008) | £396,691 | £396,691 | £396,691 | new | 1 |
| 6 (new) |  | W. (2008) | £367,512 | £367,512 | £367,512 | new | 1 |
| 7 (5) |  | Burn After Reading (2008) | £358,830 | £685,876 | £6,753,013 | -35% | 4 |
| 8 (new) |  | Easy Virtue (2008) | £341,099 | £341,099 | £341,099 | new | 1 |
| 9 (6) |  | Igor (2008) | £244,962 | £5,177 | £3,246,642 | -30% | 4 |
| 10 (10) |  | Hunger (2008) | £122,725 | £234,122 | £370,535 | -10% | 2 |
| 11 (9) |  | Mamma Mia! (2008) | £97,722 | £236,305 | £67,616,085 | -32% | 18 |
| 12 (new) |  | Scar (2008) | £74,371 | £74,371 | £74,371 | new | 1 |
| 13 (8) |  | Eagle Eye (2008) | £65,596 | £161,936 | £3,235,343 | -60% | 4 |
| 14 (7) |  | Golmaal Returns (2008) | £59,499 | £114,540 | £307,382 | -69% | 2 |
| 15 (15) |  | The Boy In the Striped Pajamas (2008) | £43,210 | £87,894 | £4,263,644 | -9% | 9 |