| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) | ![]() | Straight Outta Compton (2015) | £1,366,741 | £3,309,335 | £5,807,566 | -45% | 2 |
| 2 (2) | ![]() | Inside Out () | £731,291 | £2,305,936 | £36,024,571 | -39% | 7 |
| 3 (new) | ![]() | No Escape () | £637,630 | £637,630 | £637,630 | new | 1 |
| 4 (4) | ![]() | Mission:Impossible - Rogue Nation () | £509,849 | £1,301,030 | £20,038,723 | -43% | 6 |
| 5 (new) | ![]() | Me and Earl and the Dying Girl () | £431,726 | £431,726 | £431,726 | new | 1 |
| 6 (5) | Pixels () | £394,154 | £1,140,296 | £7,575,970 | -41% | 4 | |
| 7 (new) | The Transporter Refuelled () | £352,278 | £352,278 | £352,278 | new | 1 | |
| 8 (new) | ![]() | American Ultra () | £347,401 | £347,401 | £347,401 | new | 1 |
| 9 (6) | ![]() | The Man From U.N.C.L.E. () | £325,625 | £938,179 | £5,958,355 | -51% | 4 |
| 10 (3) | ![]() | Hitman: Agent 47 () | £295,316 | £961,850 | £1,923,261 | -69% | 2 |
| 11 (12) | ![]() | Star Wars: The Empire Strikes Back (1980) Secret Cinema | £262,425 | £262,425 | £3,976,780 | -4% | 36 |
| 12 (7) | ![]() | Sinister 2 (2015) | £244,157 | £732,113 | £3,186,933 | -57% | 3 |
| 13 (10) | 45 Years (2015) | £229,933 | £585,949 | £917,145 | -31% | 2 | |
| 14 (new) | ![]() | Ricki and the Flash (2015) | £220,032 | £220,032 | £220,032 | new | 1 |
| 15 (new) | Welcome Back (2015) | £210,772 | £210,772 | £210,772 | new | 1 | |
| 16 (11) | ![]() | The Bad Education Movie () | £86,052 | £423,239 | £1,961,849 | -74% | 3 |
| 17 (16) | ![]() | Ant-Man () | £53,629 | £181,352 | £16,220,095 | -48% | 8 |
| 18 (new) | ![]() | The Second Mother () | £41,966 | £41,966 | £41,966 | new | 1 |
| 19 (new) | ![]() | Dope (2015) | £39,787 | £39,787 | £39,787 | new | 1 |
| 20 (19) | ![]() | Amy () | £24,728 | £60,432 | £3,675,233 | -31% | 10 |
| 21 (new) | Cartel Land () | £22,733 | £22,733 | £22,733 | new | 1 | |
| 22 (18) | ![]() | Absolutely Anything () | £18,617 | £99,426 | £1,424,301 | -73% | 4 |
| 23 (new) | ![]() | Paayum Pali (2015) | £13,732 | £13,732 | £13,732 | new | 1 |
| 24 (22) | ![]() | Cinderella () | £11,372 | £29,850 | £21,268,202 | -39% | 24 |
| 25 (20) | Gemma Bovery (2015) | £5,486 | £35,119 | £237,958 | -80% | 3 | |
| 26 (new) | When Love Happens () | £4,984 | £4,984 | £4,984 | new | 1 | |
| 27 (24) | ![]() | The Legend of Barney Thomson (2015) | £4,932 | £12,987 | £661,531 | -40% | 7 |
| 28 (new) | Buttercup Bill (2015) | £3,973 | £3,973 | £3,973 | new | 1 | |
| 29 (33) | Othello: RSC Live 2015 () | £3,652 | £16,830 | £467,270 | 66% | 2 | |
| 30 (32) | Miss Julie () | £3,461 | £5,539 | £6,971 | 59% | 2 | |
| 31 (30) | ![]() | Shaun the Sheep Movie (2015) | £2,924 | £5,204 | £13,724,521 | 44% | 31 |
| 32 (25) | ![]() | Thomas & Friends: Sodors Legend of the Lost Treasure () | £2,890 | £10,480 | £579,783 | -43% | 8 |
| 33 (re) | ![]() | Addicted to Sheep (2015) | £2,236 | £2,236 | £5,162 | re | 1 |
| 34 (new) | ![]() | Closed Curtain (2015) | £2,164 | £2,164 | £2,164 | new | 1 |
| 35 (re) | ![]() | Paddington (2014) | £1,718 | £1,718 | £37,880,572 | re | 38 |
| 36 (38) | Slow West () | £1,282 | £2,726 | £494,876 | 78% | 11 | |
| 37 (re) | The Beaux' Stratagem: NT Live 2015 (2015) | £1,264 | £1,264 | £260,696 | re | 1 | |
| 38 (28) | ![]() | Theeb (2015) | £870 | £3,653 | £38,815 | -59% | 4 |
| 39 (26) | The Choir (2015) | £374 | £10,942 | £191,831 | -89% | 9 | |
| 40 (39) | Queen & Country (2015) | £285 | £703 | £98,953 | 41% | 13 | |
| 41 (re) | ![]() | Bronson () | £201 | £201 | £897,491 | re | 8 |
| 42 (re) | Captain Webb () | £180 | £180 | £4,724 | re | 2 | |