| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | 27 Dresses (2008) | £1,752,897 | £1,752,897 | £1,752,897 | new | 1 |
| 2 (3) |  | Step Up 2: The Streets (2008) | £1,372,986 | £3,322,076 | £5,680,079 | -42% | 2 |
| 3 (2) |  | The Spiderwick Chronicles (2008) | £1,305,968 | £3,200,786 | £5,756,577 | -49% | 2 |
| 4 (1) |  | Horton Hears a Who! (2008) | £937,218 | £2,428,884 | £5,375,973 | -68% | 2 |
| 5 (new) |  | Drillbit Taylor (2008) | £724,738 | £724,738 | £724,738 | new | 1 |
| 6 (4) |  | Meet the Spartans (2008) | £521,189 | £1,391,839 | £2,531,939 | -54% | 2 |
| 7 (5) |  | 10,000 BC (2008) | £476,465 | £1,265,303 | £5,051,458 | -54% | 3 |
| 8 (6) |  | Vantage Point (2008) | £397,442 | £958,140 | £5,220,041 | -46% | 4 |
| 9 (7) |  | The Game Plan (2008) | £311,339 | £887,446 | £3,525,542 | -45% | 4 |
| 10 (10) |  | The Orphanage (2007) | £281,237 | £551,954 | £880,963 | -15% | 2 |
| 11 (8) |  | The Other Boleyn Girl (2008) | £246,474 | £541,693 | £4,098,479 | -49% | 4 |
| 12 (12) |  | In Bruges (2008) | £173,297 | £332,658 | £1,750,731 | -23% | 4 |
| 13 (11) |  | The Bank Job (2008) | £156,875 | £351,112 | £3,801,036 | -44% | 5 |
| 14 (9) |  | Race (2008) | £121,961 | £321,634 | £687,415 | -67% | 2 |
| 15 (14) |  | There Will Be Blood (2008) | £106,100 | £224,160 | £4,392,471 | -25% | 8 |