| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Avatar (2009) | £8,509,050 | £8,509,050 | £8,509,050 | new | 1 |
| 2 (new) |  | St. Trinian's 2: The Legend of Frittons Gold (2009) | £1,586,832 | £1,586,832 | £1,586,832 | new | 1 |
| 3 (1) |  | A Christmas Carol (2009) | £1,003,616 | £1,770,012 | £17,800,095 | -35% | 7 |
| 4 (6) |  | Nativity! (2009) | £578,510 | £952,463 | £3,629,077 | -13% | 4 |
| 5 (3) |  | Planet 51 (2009) | £451,420 | £702,897 | £3,240,615 | -41% | 3 |
| 6 (2) |  | Where the Wild Things Are (2009) | £415,900 | £879,297 | £1,763,287 | -53% | 2 |
| 7 (5) |  | The Twilight Saga: New Moon (2009) | £349,440 | £857,370 | £25,862,050 | -53% | 5 |
| 8 (7) |  | Law Abiding Citizen (2009) | £307,104 | £721,353 | £5,452,528 | -49% | 4 |
| 9 (4) |  | Paranormal Activity (2009) | £305,637 | £686,185 | £9,389,581 | -60% | 4 |
| 10 (8) |  | 2012 (2009) | £171,827 | £537,107 | £19,211,971 | -64% | 6 |
| 11 (10) |  | A Serious Man (2009) | £69,781 | £150,992 | £1,486,991 | -47% | 5 |
| 12 (9) |  | The Box (2009) | £62,854 | £203,454 | £1,215,189 | -75% | 3 |
| 13 (new) |  | Nine (2009) | £44,443 | £44,443 | £44,443 | new | 1 |
| 14 (new) |  | Vettaikaran (2009) | £43,608 | £43,608 | £43,608 | new | 1 |
| 15 (13) |  | Up (2009) | £25,526 | £47,813 | £34,284,193 | -65% | 11 |