| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | Iron Man (2008) | £1,976,721 | £4,694,649 | £10,159,752 | -64% | 2 |
| 2 (new) |  | What Happens In Vegas... (2008) | £1,263,093 | £1,263,093 | £1,263,093 | new | 1 |
| 3 (2) |  | Forgetting Sarah Marshall (2008) | £524,326 | £1,208,712 | £5,588,834 | -61% | 3 |
| 4 (new) |  | Speed Racer (2008) | £362,102 | £362,102 | £362,102 | new | 1 |
| 5 (3) |  | Nims Island (2008) | £317,505 | £791,100 | £1,611,318 | -61% | 2 |
| 6 (new) |  | Doomsday (2008) | £311,383 | £311,383 | £311,383 | new | 1 |
| 7 (4) |  | Made of Honor (2008) | £278,661 | £733,476 | £1,483,087 | -63% | 2 |
| 8 (7) |  | In Bruges (2008) | £103,252 | £261,213 | £4,326,430 | -65% | 9 |
| 9 (6) |  | 21 (2008) | £89,656 | £256,271 | £5,280,374 | -72% | 5 |
| 10 (5) |  | The Eye (2008) | £88,979 | £277,645 | £1,649,935 | -76% | 3 |
| 11 (9) |  | Happy-Go-Lucky (2008) | £58,373 | £206,223 | £1,291,312 | -67% | 4 |
| 12 (10) |  | Persepolis (2008) | £54,050 | £143,624 | £522,658 | -57% | 3 |
| 13 (new) |  | Where In the World Is Osama Bin Laden? (2008) | £26,550 | £26,550 | £26,550 | new | 1 |
| 14 (15) |  | Kuruvi (2008) | £22,316 | £105,932 | £183,260 | -71% | 2 |
| 15 (13) |  | Step Up 2: The Streets (2008) | £22,170 | £80,523 | £10,451,882 | -77% | 8 |