| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | Mamma Mia! (2008) | £4,561,109 | £10,257,583 | £16,851,641 | -31% | 2 |
| 2 (new) |  | WALL•E (2008) | £4,253,736 | £4,253,736 | £4,253,736 | new | 1 |
| 3 (2) |  | Hancock (2008) | £2,019,937 | £4,047,104 | £20,809,070 | -45% | 3 |
| 4 (3) |  | Kung-Fu Panda (2008) | £1,512,603 | £2,947,600 | £13,824,968 | -46% | 3 |
| 5 (new) |  | Meet Dave (2008) | £681,584 | £681,584 | £681,584 | new | 1 |
| 6 (4) |  | Journey to the Center of the Earth (2008) | £581,488 | £1,140,239 | £2,094,117 | -39% | 2 |
| 7 (5) |  | The Chronicles of Narnia: Prince Caspian (2008) | £463,612 | £1,012,193 | £10,656,256 | -50% | 4 |
| 8 (7) |  | Wanted (1997) | £425,184 | £936,034 | £9,087,629 | -36% | 4 |
| 9 (6) |  | The Forbidden Kingdom (2008) | £190,879 | £539,242 | £1,215,459 | -72% | 2 |
| 10 (new) |  | Donkey Punch (2008) | £144,953 | £144,953 | £144,953 | new | 1 |
| 11 (new) |  | Kismat Konnection (2008) | £126,639 | £126,639 | £126,639 | new | 1 |
| 12 (8) |  | Sex and the City (2008) | £78,325 | £243,064 | £26,130,718 | -44% | 8 |
| 13 (new) |  | Summer Hours (2008) | £58,229 | £58,229 | £58,229 | new | 1 |
| 14 (10) |  | The Mist (2007) | £42,728 | £111,009 | £494,092 | -51% | 3 |
| 15 (12) |  | The Edge of Love (2008) | £28,854 | £84,588 | £1,127,119 | -46% | 5 |
| 16 (16) |  | Savage Grace (2007) | £26,053 | £55,248 | £81,015 | 1% | 2 |
| 17 (new) | | City of Men (2008) | £17,000 | £17,000 | £17,000 | new | 1 |
| 18 (18) |  | A Complete History of My Sexual Failures (2008) | £5,744 | £13,676 | £60,901 | -25% | 4 |
| 19 (new) | | Puffball: The Devil's Eyeball (2008) | £601 | £601 | £601 | new | 1 |
| 20 (new) |  | Sun Taam (2008) | £534 | £534 | £534 | new | 1 |
| 21 (20) |  | Son of Rambow (2008) | £305 | £305 | £5,541,877 | 4% | 16 |