| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Transformers: The Last Knight (2017) | £4,635,570 | £4,635,570 | £4,635,570 | new | 1 |
| 2 (1) |  | Wonder Woman (2017) | £1,575,673 | £2,539,469 | £18,836,596 | -16% | 4 |
| 3 (2) |  | The Mummy () | £761,554 | £2,624,751 | £7,554,607 | -35% | 3 |
| 4 (3) |  | Pirates of the Caribbean: Salazars Revenge () | £684,806 | £1,073,847 | £18,463,353 | -7% | 5 |
| 5 (4) |  | Baywatch () | £455,159 | £779,052 | £8,852,634 | -11% | 4 |
| 6 (new) | | Hampstead (2017) | £453,522 | £453,522 | £453,522 | new | 1 |
| 7 (new) | | Tubelight (2017) | £299,810 | £299,810 | £299,810 | new | 1 |
| 8 (5) |  | Churchill () | £259,466 | £593,353 | £986,085 | -34% | 2 |
| 9 (8) |  | Diary of a Wimpy Kid: The Long Haul (2017) | £253,508 | £305,506 | £5,421,190 | 20% | 5 |
| 10 (7) |  | My Cousin Rachel (2017) | £168,735 | £448,010 | £2,011,101 | -38% | 3 |
| 11 (6) |  | Gifted () | £151,798 | £379,101 | £684,424 | -50% | 2 |
| 12 (9) |  | Guardians of the Galaxy Vol. 2 () | £138,629 | £406,943 | £40,839,461 | -24% | 9 |
| 13 (11) |  | The Boss Baby (2017) | £98,682 | £116,130 | £28,393,084 | 28% | 12 |
| 14 (re) |  | Smurfs: The Lost Village (2017) | £84,381 | £84,381 | £5,629,524 | re | 11 |
| 15 (15) | | Cardboard Gangsters () | £73,002 | £117,206 | £166,482 | 33% | 2 |