| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Alvin and the Chipmunks: The Squeakquel (2009) | £5,347,191 | £5,347,191 | £5,347,191 | new | 1 |
| 2 (1) |  | Avatar (2009) | £3,828,123 | £9,895,609 | £18,404,659 | -55% | 2 |
| 3 (new) |  | Sherlock Holmes (2009) | £3,081,072 | £3,081,072 | £3,081,072 | new | 1 |
| 4 (new) |  | 3 Idiots (2009) | £437,554 | £437,554 | £437,554 | new | 1 |
| 5 (2) |  | St. Trinian's 2: The Legend of Frittons Gold (2009) | £436,296 | £1,798,998 | £3,385,830 | -73% | 2 |
| 6 (13) |  | Nine (2009) | £269,447 | £293,652 | £338,095 | 84% | 2 |
| 7 (new) |  | Nowhere Boy (2009) | £148,157 | £148,157 | £148,157 | new | 1 |
| 8 (3) |  | A Christmas Carol (2009) | £131,033 | £1,795,274 | £19,595,369 | -87% | 8 |
| 9 (7) |  | The Twilight Saga: New Moon (2009) | £129,777 | £410,660 | £26,272,710 | -63% | 6 |
| 10 (8) |  | Law Abiding Citizen (2009) | £98,898 | £283,589 | £5,736,117 | -68% | 5 |
| 11 (4) |  | Nativity! (2009) | £96,544 | £1,052,829 | £4,681,906 | -83% | 5 |
| 12 (6) |  | Where the Wild Things Are (2009) | £87,787 | £456,379 | £2,219,666 | -79% | 3 |
| 13 (9) |  | Paranormal Activity (2009) | £82,469 | £260,088 | £9,649,669 | -73% | 5 |
| 14 (5) |  | Planet 51 (2009) | £82,080 | £421,174 | £3,661,789 | -82% | 4 |
| 15 (10) |  | 2012 (2009) | £31,643 | £142,803 | £19,354,774 | -82% | 7 |