| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Cloudy With a Chance of Meatballs (2009) | £1,583,544 | £1,583,544 | £1,583,544 | new | 1 |
| 2 (1) |  | District 9 (2009) | £810,673 | £1,597,190 | £6,380,720 | -32% | 3 |
| 3 (new) |  | Gamer () | £641,568 | £641,568 | £641,568 | new | 1 |
| 4 (5) |  | (500) Days of Summer () | £511,055 | £937,174 | £3,346,233 | -12% | 3 |
| 5 (2) |  | The Final Destination (2009) | £485,989 | £1,029,444 | £11,711,421 | -48% | 4 |
| 6 (3) |  | Dorian Gray (2009) | £436,538 | £899,964 | £1,783,112 | -51% | 2 |
| 7 (6) |  | Julie & Julia () | £389,717 | £915,205 | £1,455,646 | -28% | 2 |
| 8 (4) |  | Sorority Row () | £347,817 | £667,783 | £1,450,476 | -56% | 2 |
| 9 (new) |  | The Firm (2009) | £310,060 | £310,060 | £310,060 | new | 1 |
| 10 (new) |  | Away We Go () | £250,211 | £250,211 | £250,211 | new | 1 |
| 11 (7) |  | Inglourious Basterds (2009) | £238,225 | £507,846 | £9,984,897 | -36% | 5 |
| 12 (8) |  | Aliens In the Attic (2009) | £192,160 | £223,450 | £6,256,601 | -28% | 6 |
| 13 (new) | | My Heart Goes Hadippa (2009) | £138,189 | £138,189 | £138,189 | new | 1 |
| 14 (9) |  | Funny People () | £114,570 | £251,693 | £3,427,741 | -48% | 4 |
| 15 (10) |  | Adventureland (2009) | £107,364 | £279,015 | £489,686 | -49% | 2 |
| 16 (15) | | Fish Tank () | £69,567 | £151,068 | £254,248 | -33% | 2 |
| 17 (new) | | Wanted (2009) | £69,399 | £69,399 | £69,399 | new | 1 |
| 18 (14) |  | Harry Potter and the Half Blood Prince () | £57,483 | £102,446 | £50,593,836 | -49% | 10 |
| 19 (17) |  | Moon (2009) | £7,969 | £4,893 | £1,248,081 | -21% | 10 |
| 20 (new) |  | 31° North 62° East (2009) | £7,520 | £7,520 | £7,520 | new | 1 |
| 21 (new) | | Birdwatchers () | £3,060 | £3,060 | £3,060 | new | 1 |
| 22 (new) |  | The Agent () | £967 | £967 | £967 | new | 1 |
| 23 (new) | | Je Veux Voir () | £257 | £257 | £257 | new | 1 |
| 24 (new) |  | Blind Dating () | £138 | £138 | £138 | new | 1 |