| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Quantum of Solace (2008) | £15,384,217 | £15,384,217 | £15,384,217 | new | 1 |
| 2 (1) |  | High School Musical 3: Senior Year (2008) | £2,742,682 | £9,373,048 | £17,782,423 | -67% | 2 |
| 3 (2) |  | Saw V (2008) | £953,397 | £2,194,827 | £4,631,644 | -61% | 2 |
| 4 (4) |  | Ghost Town (2008) | £786,690 | £2,085,839 | £3,433,517 | -42% | 2 |
| 5 (3) |  | Burn After Reading (2008) | £549,277 | £1,477,377 | £6,067,137 | -62% | 3 |
| 6 (6) |  | Igor (2008) | £347,656 | £1,489,326 | £3,241,465 | -23% | 3 |
| 7 (new) |  | Golmaal Returns (2008) | £192,842 | £192,842 | £192,842 | new | 1 |
| 8 (5) |  | Eagle Eye (2008) | £163,022 | £726,338 | £3,073,407 | -77% | 3 |
| 9 (9) |  | Mamma Mia! (2008) | £142,664 | £551,797 | £67,379,780 | -45% | 17 |
| 10 (new) |  | Hunger (2008) | £136,413 | £136,413 | £136,413 | new | 1 |
| 11 (7) |  | The House Bunny (2008) | £69,132 | £424,244 | £2,931,090 | -77% | 4 |
| 12 (new) |  | Of Time and the City (2008) | £57,195 | £57,195 | £57,195 | new | 1 |
| 13 (8) |  | Taken (2008) | £54,499 | £230,718 | £6,277,639 | -79% | 6 |
| 14 (10) |  | Mirrors (2008) | £48,609 | £216,724 | £2,620,025 | -79% | 4 |
| 15 (12) |  | The Boy In the Striped Pajamas (2008) | £47,704 | £200,703 | £4,175,750 | -57% | 8 |