| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | This Is It (2009) | £4,877,255 | £4,877,255 | £4,877,255 | new | 1 |
| 2 (1) |  | Up (2009) | £3,443,130 | £9,472,975 | £29,156,179 | -10% | 4 |
| 3 (3) |  | Fantastic Mr. Fox (2009) | £1,545,325 | £4,072,172 | £5,589,484 | 2% | 2 |
| 4 (2) |  | Saw VI (2009) | £940,505 | £2,041,643 | £3,777,930 | -46% | 2 |
| 5 (5) |  | Cirque Du Freak: The Vampires Assistant (2009) | £544,676 | £1,506,097 | £2,304,738 | -32% | 2 |
| 6 (4) |  | Couples Retreat (2009) | £500,258 | £1,288,005 | £4,876,825 | -46% | 3 |
| 7 (new) |  | 9 (2009) | £468,455 | £468,455 | £468,455 | new | 1 |
| 8 (new) |  | An Education (2009) | £399,122 | £399,122 | £399,122 | new | 1 |
| 9 (6) |  | The Imaginarium of Doctor Parnassus (2009) | £323,294 | £822,955 | £2,891,670 | -48% | 3 |
| 10 (new) |  | Dead Man Running (2009) | £198,442 | £198,442 | £198,442 | new | 1 |
| 11 (new) | | London Dreams (2009) | £142,722 | £142,722 | £142,722 | new | 1 |
| 12 (8) |  | Zombieland (2009) | £139,960 | £374,205 | £3,375,412 | -57% | 4 |
| 13 (7) |  | The Invention of Lying (2009) | £139,481 | £430,834 | £5,969,766 | -62% | 5 |
| 14 (10) |  | Cloudy With a Chance of Meatballs (2009) | £115,972 | £402,157 | £6,283,818 | -18% | 7 |
| 15 (9) |  | Fame (2009) | £89,422 | £392,189 | £8,703,592 | -59% | 6 |
| 16 (new) | | Aladin (2009) | £66,289 | £66,289 | £66,289 | new | 1 |
| 17 (11) |  | Triangle (2009) | £22,104 | £88,224 | £637,127 | -77% | 3 |
| 18 (new) | | Tales From the Golden Age (2009) | £11,851 | £11,851 | £11,851 | new | 1 |
| 19 (19) | | Creation (2009) | £7,084 | £24,945 | £779,556 | -40% | 6 |
| 20 (18) | | Fish Tank (2009) | £6,683 | £18,868 | £560,202 | -49% | 7 |
| 21 (21) |  | Dorian Gray (2009) | £5,379 | £13,223 | £2,913,331 | -40% | 8 |
| 22 (23) | | Morris: A Life With Bells On (2009) | £3,313 | £3,697 | £57,159 | 40% | 5 |
| 23 (22) |  | Harry Potter and the Half Blood Prince (2009) | £3,028 | £8,978 | £50,710,817 | -19% | 15 |
| 24 (new) | | The Horseman (2009) | £1,483 | £1,483 | £1,483 | new | 1 |
| 25 (new) | | Love Exposure (2009) | £784 | £784 | £784 | new | 1 |
| 26 (re) | | Colin (2009) | £739 | £739 | £1,261 | RE | 1 |