| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Hellboy II: The Golden Army (2008) | £2,969,602 | £2,969,602 | £2,969,602 | new | 1 |
| 2 (2) |  | Mamma Mia! (2008) | £1,837,577 | £5,056,102 | £50,261,947 | -17% | 7 |
| 3 (new) |  | Get Smart (2008) | £1,542,005 | £1,542,005 | £1,542,005 | new | 1 |
| 4 (1) |  | The Dark Knight (2008) | £1,454,847 | £3,345,276 | £43,498,315 | -37% | 5 |
| 5 (3) |  | You Don't Mess With the Zohan (2008) | £781,953 | £2,039,745 | £3,560,382 | -49% | 2 |
| 6 (4) |  | The Mummy: Tomb of the Dragon Emperor (2008) | £641,421 | £1,834,301 | £9,991,490 | -55% | 3 |
| 7 (5) |  | Wild Child (2008) | £585,881 | £1,855,461 | £3,032,933 | -50% | 2 |
| 8 (7) |  | WALL•E (2008) | £459,574 | £1,346,036 | £20,511,945 | -41% | 6 |
| 9 (6) |  | Star Wars: The Clone Wars (2008) | £347,981 | £1,019,765 | £1,915,065 | -61% | 2 |
| 10 (8) |  | Space Chimps (2008) | £135,547 | £426,196 | £2,836,558 | -41% | 4 |
| 11 (9) |  | Kung-Fu Panda (2008) | £129,473 | £422,449 | £19,340,035 | -42% | 8 |
| 12 (new) |  | College Road Trip (2008) | £121,360 | £121,360 | £121,360 | new | 1 |
| 13 (new) |  | Somers Town (2008) | £121,345 | £121,345 | £121,345 | new | 1 |
| 14 (10) | | Singh Is Kinng (2008) | £102,038 | £229,980 | £1,181,227 | -43% | 3 |
| 15 (new) | | Shoot On Sight (2008) | £61,533 | £61,533 | £61,533 | new | 1 |
| 16 (11) |  | Angus, Thongs and Perfect Snogging (2008) | £52,268 | £227,421 | £5,252,018 | -64% | 5 |
| 17 (14) |  | Miss Pettigrew Lives For a Day (2008) | £42,675 | £140,882 | £231,760 | -53% | 2 |
| 18 (16) |  | Man On Wire (2008) | £42,191 | £102,147 | £564,542 | -32% | 4 |
| 19 (new) | | Lakh Pardesi Hoiye (2008) | £7,634 | £7,634 | £7,634 | new | 1 |
| 20 (19) |  | The Chronicles of Narnia: Prince Caspian (2008) | £7,508 | £28,320 | £11,587,928 | -45% | 9 |
| 21 (new) | | Maan Gaye Mughal E Azam (2008) | £5,861 | £5,861 | £5,861 | new | 1 |
| 22 (22) |  | The Edge of Love (2008) | £4,760 | £190,495 | £1,422,698 | -15% | 9 |
| 23 (24) |  | Savage Grace (2007) | £3,643 | £7,082 | £162,403 | 6% | 7 |
| 24 (23) | | Before the Rains (2008) | £3,416 | £8,080 | £59,666 | -1% | 5 |
| 25 (20) |  | Cass (2008) | £2,823 | £7,860 | £131,059 | -68% | 4 |
| 26 (26) | | Death Defying Acts (2008) | £383 | £1,532 | £10,351 | -72% | 3 |