UK Box Office 21st August, 2015
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (new) |  | Paper Towns (2015) | £2,072,789 | £2,072,789 | £2,072,789 | new | 1 |
| 2 (2) |  | Inside Out (2015) | £1,379,702 | £3,237,117 | £30,651,236 | -28% | 5 |
| 3 (new) |  | Sinister 2 (2015) | £1,069,261 | £1,069,261 | £1,069,261 | new | 1 |
| 4 (3) |  | Mission:Impossible - Rogue Nation (2015) | £1,042,827 | £2,172,604 | £16,945,898 | -34% | 4 |
| 5 (4) |  | The Man From U.N.C.L.E. (2015) | £917,934 | £2,096,932 | £3,545,230 | -37% | 2 |
| 6 (1) |  | Pixels (2015) | £820,456 | £2,070,135 | £4,730,907 | -69% | 2 |
| 7 (new) |  | Vacation (2015) | £608,748 | £608,748 | £608,748 | new | 1 |
| 8 (new) |  | The Bad Education Movie (2015) | £594,861 | £594,861 | £594,861 | new | 1 |
| 9 (5) |  | Trainwreck (2015) | £492,567 | £1,239,372 | £2,171,353 | -47% | 2 |
| 10 (8) |  | Minions (2015) | £390,409 | £967,097 | £44,204,464 | -33% | 9 |
| 11 (7) |  | Southpaw (2015) | £374,758 | £787,510 | £7,821,500 | -40% | 5 |
| 12 (12) |  | Star Wars: The Empire Strikes Back (1980) Secret Cinema | £278,575 | £278,575 | £3,439,730 | -4% | 34 |
| 13 (6) |  | Fantastic Four (2015) | £249,205 | £817,482 | £5,653,567 | -64% | 3 |
| 14 (9) |  | Absolutely Anything (2015) | £185,949 | £577,202 | £1,064,349 | -62% | 2 |
| 15 (11) |  | Ant-Man (2015) | £141,121 | £387,709 | £15,784,782 | -57% | 6 |