| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Home (2015) | £6,025,917 | £6,025,917 | £6,025,917 | new | 1 |
| 2 (new) |  | The Divergent Series: Insurgent () | £2,938,860 | £2,938,860 | £2,938,860 | new | 1 |
| 3 (1) |  | The Second Best Exotic Marigold Hotel (2015) | £671,088 | £1,681,790 | £13,413,705 | -52% | 4 |
| 4 (3) |  | Focus () | £490,317 | £884,134 | £6,527,072 | -39% | 4 |
| 5 (new) |  | The Gunman () | £405,934 | £405,934 | £405,934 | new | 1 |
| 6 (2) |  | Run All Night () | £348,638 | £856,833 | £1,680,666 | -58% | 2 |
| 7 (4) |  | Suite Française () | £268,607 | £789,480 | £1,293,408 | -47% | 2 |
| 8 (7) |  | Still Alice () | £257,016 | £596,349 | £1,698,527 | -39% | 3 |
| 9 (5) |  | Fifty Shades of Grey (2015) | £235,681 | £565,771 | £34,395,106 | -52% | 6 |
| 10 (new) |  | Wild Card (2015) | £152,034 | £152,034 | £152,034 | new | 1 |
| 11 (8) |  | Big Hero 6 () | £132,451 | £222,244 | £19,334,096 | -66% | 8 |
| 12 (9) |  | Kingsman: The Secret Service () | £132,290 | £275,389 | £16,059,731 | -55% | 8 |
| 13 (6) |  | Chappie (2015) | £118,848 | £380,814 | £2,367,500 | -73% | 3 |
| 14 (new) | | The Voices (2015) | £118,255 | £118,255 | £118,255 | new | 1 |
| 15 (16) |  | Paddington (2014) | £110,657 | £119,795 | £37,456,182 | 20% | 16 |
| 16 (10) |  | Shaun the Sheep Movie (2015) | £100,889 | £160,003 | £12,888,445 | -62% | 7 |
| 17 (new) |  | The Tale of the Princess Kaguya (2015) | £69,344 | £69,344 | £69,344 | new | 1 |
| 18 (new) | | Mommy (2015) | £59,935 | £59,935 | £59,935 | new | 1 |
| 19 (re) | | X/Y () | £58,606 | £58,606 | £296,579 | re | 1 |
| 20 (15) |  | The Theory of Everything (2014) | £34,939 | £113,391 | £21,322,985 | -65% | 12 |
| 21 (new) |  | Jalaibee (2015) | £21,717 | £21,717 | £21,717 | new | 1 |
| 22 (new) | | A Second Chance (2015) | £5,031 | £5,031 | £5,031 | new | 1 |
| 23 (17) |  | Appropriate Behaviour (2015) | £4,772 | £9,155 | £51,312 | -40% | 3 |
| 24 (18) | | The Duke of Burgundy (2015) | £4,525 | £9,371 | £144,993 | -35% | 5 |
| 25 (20) |  | The Imitation Game (2014) | £3,173 | £16,486 | £16,369,952 | -37% | 19 |
| 26 (new) |  | Show Boat: San Francisco Opera 2015 (2015) | £2,674 | £2,674 | £2,674 | new | 1 |
| 27 (19) | | Kajaki: The True Story (2014) | £1,959 | £6,750 | £177,968 | -63% | 11 |
| 28 (new) |  | Son Mektup (2015) | £1,858 | £1,858 | £1,858 | new | 1 |
| 29 (25) | | Catch Me Daddy () | £1,409 | £5,102 | £83,108 | -45% | 4 |
| 30 (22) | | Behind the Beautiful Forevers: NT Live 2015 () | £1,144 | £6,530 | £275,069 | -65% | 2 |
| 31 (21) |  | Testament of Youth () | £598 | £10,395 | £1,987,234 | -88% | 10 |
| 32 (24) | | Love's Labour's Won: RSC Live 2015 (2015) | £495 | £3,926 | £485,850 | -84% | 4 |
| 33 (35) | | Citizenfour (2014) | £489 | £870 | £156,660 | 34% | 17 |
| 34 (23) | | Hyena (2015) | £313 | £2,850 | £36,539 | -90% | 3 |
| 35 (36) |  | High Tide (2015) | £295 | £651 | £2,402 | 61% | 3 |
| 36 (33) |  | Trash (2014) | £266 | £390 | £179,665 | -59% | 8 |
| 37 (new) |  | Nobody Told Us Anything (2015) | £134 | £134 | £134 | new | 1 |
| 38 (28) |  | Mr. Turner (2014) | £123 | £5,311 | £6,820,767 | -93% | 20 |
| 39 (31) |  | Dreamcatcher (2003) | £39 | £857 | £5,849 | -96% | 5 |
| 40 (new) | | Residue (2015) | £15 | £15 | £15 | new | 1 |