| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (2) |  | Monsters Vs. Aliens (2009) | £2,057,367 | £5,813,360 | £17,343,985 | -27% | 3 |
| 2 (1) |  | Fast and Furious (2009) | £1,929,159 | £5,315,784 | £10,244,568 | -61% | 2 |
| 3 (3) |  | 17 Again () | £1,772,831 | £5,019,831 | £7,583,933 | -31% | 2 |
| 4 (new) |  | I Love You, Man () | £1,122,258 | £1,122,258 | £1,122,258 | new | 1 |
| 5 (new) |  | Crank: High Voltage () | £554,565 | £554,565 | £554,565 | new | 1 |
| 6 (4) |  | The Boat That Rocked () | £498,838 | £1,349,025 | £5,305,276 | -48% | 3 |
| 7 (6) |  | Race to Witch Mountain (2009) | £469,034 | £1,319,810 | £1,901,060 | -19% | 2 |
| 8 (new) |  | In the Loop (2009) | £468,954 | £468,954 | £468,954 | new | 1 |
| 9 (5) |  | Knowing () | £312,520 | £769,952 | £6,373,461 | -50% | 4 |
| 10 (7) |  | Marley and Me () | £304,433 | £776,228 | £14,912,767 | -35% | 6 |
| 11 (9) |  | The Haunting In Connecticut (2009) | £195,932 | £491,280 | £3,948,807 | -48% | 4 |
| 12 (11) |  | Let the Right One In () | £152,642 | £340,790 | £564,944 | -32% | 2 |
| 13 (10) |  | Paul Blart Mall Cop () | £135,836 | £503,710 | £5,237,343 | -42% | 5 |
| 14 (8) |  | Dragonball Evolution () | £70,370 | £212,112 | £648,336 | -84% | 2 |
| 15 (13) |  | Gran Torino () | £64,771 | £162,674 | £8,143,251 | -40% | 9 |
| 16 (12) |  | The Damned United () | £62,428 | £173,649 | £1,993,218 | -57% | 4 |
| 17 (14) |  | Fifty Dead Men Walking (2009) | £56,360 | £157,342 | £256,782 | -43% | 2 |
| 18 (17) |  | The Young Victoria (2009) | £30,078 | £77,789 | £4,772,714 | -4% | 7 |
| 19 (16) |  | Slumdog Millionaire () | £29,613 | £73,551 | £31,518,976 | -48% | 15 |
| 20 (new) |  | Good () | £27,054 | £27,054 | £27,054 | new | 1 |
| 21 (new) |  | Mini Punjab () | £15,834 | £15,834 | £15,834 | new | 1 |
| 22 (new) |  | Not Easily Broken () | £10,727 | £10,727 | £10,727 | new | 1 |
| 23 (20) | | Genova () | £7,744 | £19,610 | £106,124 | -33% | 4 |
| 24 (new) |  | Günesi Gördüm (2009) | £4,746 | £4,746 | £4,746 | new | 1 |
| 25 (18) |  | The Secret of Moonacre (2009) | £3,080 | £15,976 | £914,450 | -78% | 11 |
| 26 (23) |  | Bronson () | £2,289 | £6,080 | £890,265 | -69% | 6 |
| 27 (21) |  | The Tale of Despereaux () | £1,627 | £2,008 | £2,533,721 | -79% | 18 |
| 28 (new) |  | Before I Forget (2009) | £814 | £814 | £814 | new | 1 |
| 29 (24) |  | Lesbian Vampire Killers () | £784 | £3,911 | £1,673,391 | -89% | 5 |
| 30 (25) |  | The Age of Stupid (2009) | £751 | £2,270 | £165,469 | -55% | 5 |
| 31 (26) |  | Wendy and Lucy () | £732 | £3,214 | £113,120 | -56% | 7 |