| 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 () | £1,372,986 | £3,322,076 | £5,680,079 | -42% | 2 |
| 3 (2) |  | The Spiderwick Chronicles () | £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 () | £724,738 | £724,738 | £724,738 | new | 1 |
| 6 (4) |  | Meet the Spartans () | £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 () | £397,442 | £958,140 | £5,220,041 | -46% | 4 |
| 9 (7) |  | The Game Plan () | £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 () | £246,474 | £541,693 | £4,098,479 | -49% | 4 |
| 12 (12) |  | In Bruges () | £173,297 | £332,658 | £1,750,731 | -23% | 4 |
| 13 (11) |  | The Bank Job () | £156,875 | £351,112 | £3,801,036 | -44% | 5 |
| 14 (9) |  | Race () | £121,961 | £321,634 | £687,415 | -67% | 2 |
| 15 (14) |  | There Will Be Blood (2008) | £106,100 | £224,160 | £4,392,471 | -25% | 8 |
| 16 (17) |  | Love In the Time of Cholera () | £49,042 | £122,017 | £213,801 | -47% | 2 |
| 17 (new) |  | First Sunday (2008) | £40,706 | £40,706 | £40,706 | new | 1 |
| 18 (13) |  | The Accidental Husband () | £40,140 | £179,388 | £3,930,568 | -73% | 5 |
| 19 (new) | | One Two Three () | £38,351 | £38,351 | £38,351 | new | 1 |
| 20 (new) |  | Grindhouse () | £27,225 | £27,225 | £27,225 | new | 1 |
| 21 (new) |  | You the Living () | £19,566 | £19,566 | £19,566 | new | 1 |
| 22 (new) | | The Hottie and the Nottie (2008) | £17,167 | £17,167 | £17,167 | new | 1 |
| 23 (new) | | Beaufort (2008) | £5,641 | £5,641 | £5,641 | new | 1 |
| 24 (re) |  | La Vie En Rose (2007) | £3,172 | £3,172 | £1,685,288 | re | 9 |
| 25 (new) |  | The Book of Revelation (2008) | £1,244 | £1,244 | £1,244 | new | 1 |
| 26 (new) |  | The Go Master (2008) | £1,016 | £1,016 | £1,016 | new | 1 |
| 27 (21) |  | In the Valley of Elah (2007) | £488 | £9,670 | £931,314 | -2% | 10 |