| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | The Twilight Saga: New Moon (2009) | £11,683,158 | £11,683,158 | £11,683,158 | new | 1 |
| 2 (1) |  | 2012 (2009) | £3,496,202 | £6,433,872 | £12,923,681 | -46% | 2 |
| 3 (2) |  | A Christmas Carol (2009) | £2,224,044 | £3,082,234 | £8,553,363 | -11% | 3 |
| 4 (3) |  | Harry Brown (2009) | £724,627 | £1,432,391 | £2,704,205 | -43% | 2 |
| 5 (4) |  | Up (2009) | £642,134 | £806,921 | £33,561,384 | -35% | 7 |
| 6 (6) |  | Fantastic Mr. Fox (2009) | £454,088 | £574,816 | £8,289,695 | -33% | 5 |
| 7 (5) |  | The Men Who Stare At Goats (2009) | £430,319 | £854,496 | £3,613,831 | -46% | 3 |
| 8 (new) |  | A Serious Man (2009) | £321,114 | £321,114 | £321,114 | new | 1 |
| 9 (8) |  | The Fourth Kind (2009) | £181,105 | £437,649 | £2,251,107 | -58% | 3 |
| 10 (new) |  | The Informant! (2009) | £179,612 | £179,612 | £179,612 | new | 1 |
| 11 (new) | | Kurbaan (2009) | £164,468 | £164,468 | £164,468 | new | 1 |
| 12 (7) |  | This Is It (2009) | £112,767 | £431,165 | £9,732,593 | -76% | 4 |
| 13 (9) |  | An Education (2009) | £106,457 | £263,564 | £1,633,504 | -47% | 4 |
| 14 (12) | | Bright Star (2009) | £73,777 | £194,088 | £738,126 | -49% | 3 |
| 15 (15) |  | The White Ribbon (2009) | £63,016 | £118,635 | £190,861 | -13% | 2 |
| 16 (22) |  | The Imaginarium of Doctor Parnassus (2009) | £9,381 | £25,928 | £3,331,648 | -56% | 6 |
| 17 (new) |  | Glorious 39 (2009) | £7,654 | £7,654 | £7,654 | new | 1 |
| 18 (new) | | First Day of the Rest of Your Life (2009) | £6,146 | £6,146 | £6,146 | new | 1 |
| 19 (20) |  | Dead Man Running (2009) | £6,135 | £19,987 | £507,501 | -76% | 4 |
| 20 (27) |  | Dorian Gray (2009) | £4,051 | £6,066 | £2,945,385 | 29% | 11 |
| 21 (new) | | Kurtlar Vadisi Gladio (2009) | £3,280 | £3,280 | £3,280 | new | 1 |
| 22 (31) |  | Harry Potter and the Half Blood Prince (2009) | £2,992 | £2,992 | £50,716,396 | 92% | 18 |
| 23 (new) | | The Sea Wall (2009) | £2,372 | £2,372 | £2,372 | new | 1 |
| 24 (11) | | Morris: A Life With Bells On (2009) | £1,350 | £2,959 | £68,944 | -99% | 8 |
| 25 (26) | | Fish Tank (2009) | £1,266 | £5,828 | £583,167 | -58% | 10 |
| 26 (new) | | Southern Softies (2009) | £1,093 | £1,093 | £1,093 | new | 1 |
| 27 (25) | | London Dreams (2009) | £994 | £3,680 | £256,375 | -84% | 4 |
| 28 (new) | | Machan (2009) | £701 | £701 | £701 | new | 1 |
| 29 (29) | | Creation (2009) | £169 | £11,128 | £813,414 | -90% | 9 |