| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | The Second Best Exotic Marigold Hotel (2015) | £3,771,852 | £3,771,852 | £3,771,852 | new | 1 |
| 2 (1) |  | Fifty Shades of Grey (2015) | £2,248,492 | £5,071,376 | £30,314,012 | -51% | 3 |
| 3 (new) |  | Focus () | £1,910,245 | £1,910,245 | £1,910,245 | new | 1 |
| 4 (2) |  | Big Hero 6 () | £1,219,171 | £1,491,074 | £17,669,306 | -53% | 5 |
| 5 (3) |  | Shaun the Sheep Movie (2015) | £1,008,452 | £1,296,610 | £11,648,735 | -58% | 4 |
| 6 (4) |  | Kingsman: The Secret Service () | £667,464 | £1,167,380 | £14,553,017 | -45% | 5 |
| 7 (new) |  | The Boy Next Door () | £406,174 | £406,174 | £406,174 | new | 1 |
| 8 (new) |  | It Follows () | £371,142 | £371,142 | £371,142 | new | 1 |
| 9 (5) |  | The Wedding Ringer () | £368,213 | £807,251 | £1,797,696 | -63% | 2 |
| 10 (8) |  | The Theory of Everything (2014) | £333,039 | £713,782 | £20,621,855 | -25% | 9 |
| 11 (7) |  | Peppa Pig: The Golden Boots (2015) | £203,528 | £305,404 | £2,326,328 | -60% | 3 |
| 12 (10) |  | American Sniper (2015) | £169,669 | £402,536 | £13,424,242 | -59% | 7 |
| 13 (9) |  | Jupiter Ascending () | £140,432 | £315,322 | £4,241,234 | -68% | 4 |
| 14 (6) |  | Project Almanac (2015) | £137,479 | £297,193 | £1,165,223 | -84% | 2 |
| 15 (re) |  | Birdman Or (The Unexpected Virtue of Ignorance) (2015) | £132,445 | £132,445 | £5,673,841 | re | 6 |
| 16 (new) | | Kaaki Sattai (2015) | £48,901 | £48,901 | £48,901 | new | 1 |
| 17 (new) | | Catch Me Daddy () | £37,679 | £37,679 | £37,679 | new | 1 |
| 18 (18) |  | The Imitation Game (2014) | £30,463 | £87,613 | £16,279,022 | -30% | 16 |
| 19 (re) | | Der Fliegende Hollander Royal Opera London 2015 (2015) | £29,390 | £29,390 | £306,235 | re | 1 |
| 20 (19) | | The Duke of Burgundy (2015) | £20,797 | £49,429 | £92,584 | -52% | 2 |
| 21 (21) |  | Testament of Youth () | £17,989 | £61,127 | £1,928,607 | 36% | 7 |
| 22 (new) | | White God () | £17,475 | £17,475 | £17,475 | new | 1 |
| 23 (new) |  | Honour Killing () | £5,662 | £5,662 | £5,662 | new | 1 |
| 24 (re) | | Globe On Screen: The Duchess of Malfi Shakespeares Globe 2014 () | £4,723 | £4,723 | £8,773 | re | 1 |
| 25 (new) | | Hinterland (2015) | £3,110 | £3,110 | £3,110 | new | 1 |
| 26 (new) | | A Dark Reflection () | £3,073 | £3,073 | £3,073 | new | 1 |
| 27 (new) | | Love's Labour's Won: RSC Live 2015 (2015) | £1,939 | £1,939 | £1,939 | new | 1 |
| 28 (25) |  | Trash (2014) | £1,863 | £4,131 | £169,175 | -8% | 5 |
| 29 (30) | | Citizenfour (2014) | £1,538 | £2,263 | £152,322 | 59% | 14 |
| 30 (23) |  | Mr. Turner (2014) | £883 | £37,611 | £6,764,125 | -81% | 17 |
| 31 (31) |  | Leviathan (2014) | £816 | £4,703 | £283,464 | 25% | 5 |
| 32 (re) | | Vikings Live From the British Museum () | £344 | £344 | £358,046 | re | 2 |
| 33 (re) | | Kajaki: The True Story (2014) | £293 | £293 | £165,353 | re | 9 |
| 34 (re) | | The Green Prince () | £246 | £246 | £59,244 | re | 8 |
| 35 (28) |  | The Woman In Black: Angel of Death (2015) | £19 | £902 | £5,007,735 | -98% | 9 |