| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | Quantum of Solace () | £9,221,744 | £16,066,406 | £31,450,623 | -40% | 2 |
| 2 (2) |  | High School Musical 3: Senior Year () | £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 () | £396,691 | £396,691 | £396,691 | new | 1 |
| 6 (new) |  | W. () | £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 () | £341,099 | £341,099 | £341,099 | new | 1 |
| 9 (6) |  | Igor () | £244,962 | £5,177 | £3,246,642 | -30% | 4 |
| 10 (10) |  | Hunger () | £122,725 | £234,122 | £370,535 | -10% | 2 |
| 11 (9) |  | Mamma Mia! () | £97,722 | £236,305 | £67,616,085 | -32% | 18 |
| 12 (new) |  | Scar () | £74,371 | £74,371 | £74,371 | new | 1 |
| 13 (8) |  | Eagle Eye () | £65,596 | £161,936 | £3,235,343 | -60% | 4 |
| 14 (7) |  | Golmaal Returns () | £59,499 | £114,540 | £307,382 | -69% | 2 |
| 15 (15) |  | The Boy In the Striped Pajamas () | £43,210 | £87,894 | £4,263,644 | -9% | 9 |
| 16 (new) |  | Parlez Moi De La Pluie (2008) | £41,961 | £41,961 | £41,961 | new | 1 |
| 17 (12) |  | Of Time and the City () | £31,718 | £75,469 | £132,664 | -45% | 2 |
| 18 (new) | | Emi Liya Hai to Chukana Padega (2008) | £25,046 | £25,046 | £25,046 | new | 1 |
| 19 (22) |  | The Dark Knight () | £20,193 | £39,873 | £48,586,304 | 53% | 16 |
| 20 (new) | | The Warlords (2008) | £18,708 | £18,708 | £18,708 | new | 1 |
| 21 (16) |  | City of Ember () | £17,351 | £21,006 | £1,392,840 | -43% | 5 |
| 22 (20) |  | The Duchess () | £9,649 | £23,479 | £6,936,926 | -27% | 10 |
| 23 (21) |  | Brideshead Revisited (2008) | £7,917 | £20,088 | £1,311,367 | -35% | 6 |
| 24 (19) |  | How to Lose Friends and Alienate People (2008) | £5,920 | £15,343 | £4,070,638 | -59% | 6 |
| 25 (new) |  | Ek Vivaah Aisa Bhi () | £4,464 | £4,464 | £4,464 | new | 1 |
| 26 (new) |  | OSS 117: Cairo, Nest of Spies () | £4,165 | £4,165 | £4,165 | new | 1 |
| 27 (new) |  | Sat Sri Akal () | £2,458 | £2,458 | £2,458 | new | 1 |
| 28 (25) |  | Man On Wire () | £1,849 | £3,630 | £860,224 | -16% | 15 |
| 29 (27) |  | Somers Town () | £1,513 | £2,493 | £562,535 | 20% | 11 |
| 30 (23) | | The Fall () | £790 | £3,427 | £73,207 | -66% | 4 |