| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | The Inbetweeners Movie (2011) | £5,696,848 | £12,648,230 | £25,864,966 | -57% | 2 |
| 2 (new) |  | One Day (2011) | £2,208,724 | £2,208,724 | £2,208,724 | new | 1 |
| 3 (2) |  | Rise of the Planet of the Apes (2011) | £1,659,572 | £3,601,253 | £15,260,770 | -32% | 3 |
| 4 (4) |  | The Smurfs (2011) | £1,478,650 | £3,263,217 | £10,961,052 | 2% | 3 |
| 5 (new) |  | Final Destination 5 (2011) | £1,450,464 | £1,450,464 | £1,450,464 | new | 1 |
| 6 (3) |  | Cowboys & Aliens (2011) | £792,898 | £1,903,524 | £3,680,844 | -55% | 2 |
| 7 (5) |  | Harry Potter and the Deathly Hallows Part 2 (2011) | £765,191 | £1,674,759 | £70,620,857 | -20% | 7 |
| 8 (new) |  | Conan: The Barbarian (2011) | £622,268 | £622,268 | £622,268 | new | 1 |
| 9 (6) |  | Spy Kids: All the Time In the World (2011) | £607,051 | £1,559,751 | £2,262,829 | -14% | 2 |
| 10 (8) |  | Mr. Poppers Penguins (2011) | £408,985 | £1,030,233 | £6,632,047 | -3% | 4 |
| 11 (new) | | The Skin I Live In (2011) | £325,349 | £325,349 | £325,349 | new | 1 |
| 12 (11) |  | Cars 2 (2011) | £253,867 | £604,353 | £14,621,129 | -18% | 6 |
| 13 (7) |  | Super 8 (2011) | £204,432 | £572,228 | £7,027,506 | -54% | 4 |
| 14 (10) |  | The Guard (2011) | £184,996 | £380,945 | £3,884,712 | -42% | 8 |
| 15 (14) |  | Horrid Henry: The Movie (2011) | £111,582 | £349,884 | £6,009,212 | -26% | 5 |
| 16 (13) |  | Captain America: The First Avenger (2011) | £38,637 | £162,802 | £9,379,436 | -76% | 5 |
| 17 (17) | | Project Nim (2011) | £5,307 | £18,949 | £79,886 | -63% | 3 |
| 18 (19) |  | Senna (2011) | £3,189 | £6,004 | £3,148,748 | 39% | 13 |
| 19 (re) |  | TT3D: Closer to the Edge (2011) | £2,453 | £2,453 | £1,243,865 | RE | 13 |
| 20 (new) | | Powder (2011) | £584 | £584 | £584 | new | 1 |
| 21 (22) | | Just Do It a Tale of Modern Day Outlaws (2011) | £489 | £489 | £10,788 | -38% | 7 |