| 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 |
| 16 (17) |  | Fantastic Mr. Fox (2009) | £23,915 | £38,031 | £8,810,298 | -44% | 9 |
| 17 (12) |  | Harry Brown (2009) | £20,938 | £68,805 | £4,114,084 | -72% | 6 |
| 18 (11) |  | The Descent Part 2 (2009) | £15,135 | £75,192 | £662,279 | -84% | 3 |
| 19 (16) | | Me and Orson Welles (2008) | £14,232 | £56,206 | £402,254 | -77% | 3 |
| 20 (19) |  | An Education (2009) | £13,257 | £37,495 | £1,933,376 | -48% | 8 |
| 21 (21) | | Bright Star (2009) | £6,657 | £24,128 | £998,335 | -48% | 7 |
| 22 (new) |  | Humpday (2009) | £5,973 | £5,973 | £5,973 | new | 1 |
| 23 (20) |  | Glorious 39 (2009) | £3,413 | £76,403 | £284,446 | -82% | 5 |
| 24 (22) | | Cracks (2009) | £3,054 | £10,595 | £87,800 | -73% | 3 |
| 25 (24) | | Unmade Beds (2009) | £1,289 | £4,613 | £10,720 | -79% | 2 |
| 26 (26) |  | The Imaginarium of Doctor Parnassus (2009) | £951 | £3,092 | £3,917,720 | -73% | 10 |
| 27 (29) | | Fish Tank (2009) | £230 | £971 | £596,385 | -31% | 14 |
| 28 (27) |  | Bunny and the Bull (2009) | £20 | £1,658 | £82,626 | -97% | 4 |