| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | State of Play (2009) | £1,513,951 | £1,513,951 | £1,513,951 | new | 1 |
| 2 (1) |  | Monsters Vs. Aliens (2009) | £1,078,617 | £1,479,222 | £18,823,207 | -48% | 4 |
| 3 (2) |  | Fast and Furious (2009) | £1,052,533 | £1,797,522 | £12,042,090 | -45% | 3 |
| 4 (3) |  | 17 Again (2009) | £1,025,332 | £1,638,550 | £9,222,483 | -42% | 3 |
| 5 (4) |  | I Love You, Man (2009) | £708,071 | £1,265,136 | £2,387,394 | -37% | 2 |
| 6 (8) |  | In the Loop (2009) | £348,998 | £591,895 | £1,060,849 | -26% | 2 |
| 7 (new) |  | The Uninvited (2009) | £343,378 | £343,378 | £343,378 | new | 1 |
| 8 (new) |  | Observe and Report (2009) | £326,749 | £326,749 | £326,749 | new | 1 |
| 9 (7) |  | Race to Witch Mountain (2009) | £250,250 | £355,045 | £2,256,105 | -47% | 3 |
| 10 (6) |  | The Boat That Rocked (2009) | £249,823 | £494,116 | £5,799,392 | -50% | 4 |
| 11 (5) |  | Crank: High Voltage (2009) | £217,814 | £485,003 | £1,039,568 | -61% | 2 |
| 12 (9) |  | Knowing (2009) | £138,395 | £276,550 | £6,650,011 | -56% | 5 |
| 13 (10) |  | Marley and Me (2009) | £125,859 | £210,313 | £15,123,080 | -59% | 7 |
| 14 (12) |  | Let the Right One In (2009) | £95,910 | £206,476 | £771,420 | -37% | 3 |
| 15 (11) |  | The Haunting In Connecticut (2009) | £72,735 | £160,950 | £4,109,757 | -63% | 5 |