| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | Sex and the City (2008) | £3,085,231 | £7,295,101 | £16,062,366 | -65% | 2 |
| 2 (2) |  | Indiana Jones and the Kingdom of the Crystal Skull (2008) | £2,671,885 | £5,115,946 | £32,704,397 | -52% | 3 |
| 3 (new) |  | Superhero Movie (2008) | £851,353 | £851,353 | £851,353 | new | 1 |
| 4 (new) |  | Prom Night (2008) | £507,985 | £507,985 | £507,985 | new | 1 |
| 5 (new) |  | Gone Baby Gone () | £351,127 | £351,127 | £351,127 | new | 1 |
| 6 (3) |  | What Happens In Vegas... () | £290,427 | £684,354 | £7,409,341 | -55% | 5 |
| 7 (4) |  | Iron Man (2008) | £285,109 | £611,250 | £16,742,335 | -55% | 6 |
| 8 (new) | | Sarkar Raj (2008) | £187,737 | £187,737 | £187,737 | new | 1 |
| 9 (new) |  | Mongol (2008) | £185,364 | £185,364 | £185,364 | new | 1 |
| 10 (6) |  | Harold and Kumar Escape From Guantanamo Bay (2008) | £111,286 | £288,174 | £553,520 | -58% | 2 |
| 11 (5) |  | Nims Island (2008) | £99,538 | £167,458 | £3,608,632 | -64% | 6 |
| 12 (8) |  | Speed Racer () | £55,703 | £79,059 | £1,615,794 | -49% | 5 |
| 13 (7) |  | Forgetting Sarah Marshall (2008) | £28,008 | £123,172 | £7,555,432 | -76% | 7 |
| 14 (10) |  | Caramel (2008) | £15,789 | £45,016 | £400,246 | -59% | 4 |
| 15 (new) | | Lets Get Lost (2008) | £15,483 | £15,483 | £15,483 | new | 1 |