| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | IT (2017) | £6,070,542 | £11,166,254 | £21,168,697 | -39% | 2 |
| 2 (new) |  | Victoria and Abdul (2017) | £1,846,970 | £1,846,970 | £1,846,970 | new | 1 |
| 3 (new) |  | Mother! (2017) | £831,676 | £831,676 | £831,676 | new | 1 |
| 4 (new) |  | American Assassin (2017) | £768,951 | £768,951 | £768,951 | new | 1 |
| 5 (4) |  | The Emoji Movie (2017) | £388,656 | £367,194 | £14,653,209 | -29% | 7 |
| 6 (new) |  | The Jungle Bunch (2017) | £374,981 | £374,981 | £374,981 | new | 1 |
| 7 (2) |  | American Made (2017) | £344,763 | £712,754 | £5,044,991 | -49% | 4 |
| 8 (3) |  | Dunkirk (2017) | £336,547 | £711,125 | £55,758,074 | -47% | 9 |
| 9 (6) |  | Wind River (2017) | £255,037 | £504,874 | £942,773 | -42% | 2 |
| 10 (7) |  | Despicable Me 3 (2017) | £254,958 | £298,679 | £46,505,691 | -33% | 12 |
| 11 (5) |  | The Hitman's Bodyguard (2017) | £235,043 | £511,710 | £7,111,031 | -52% | 5 |
| 12 (8) |  | Logan Lucky (2017) | £124,250 | £303,111 | £3,207,542 | -67% | 4 |
| 13 (13) |  | Cars 3 (2017) | £112,264 | £118,214 | £11,425,628 | -31% | 9 |
| 14 (14) |  | Captain Underpants: The First Epic Movie (2017) | £102,444 | £112,810 | £7,719,673 | -37% | 8 |
| 15 (11) |  | Girls Trip (2017) | £82,802 | £198,188 | £8,869,229 | -53% | 8 |