| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | Peter Rabbit (2018) | £5,610,556 | £8,004,334 | £21,643,421 | 18% | 3 |
| 2 (new) |  | Ready Player One (2018) | £5,113,041 | £5,113,041 | £5,113,041 | new | 1 |
| 3 (new) |  | Isle of Dogs (2018) | £1,641,509 | £1,641,509 | £1,641,509 | new | 1 |
| 4 (new) |  | Blockers (2018) | £1,349,627 | £1,349,627 | £1,349,627 | new | 1 |
| 5 (3) |  | Black Panther (2018) | £1,044,075 | £1,819,584 | £46,711,648 | -20% | 7 |
| 6 (5) |  | The Greatest Showman (2017) | £812,202 | £1,381,179 | £41,494,128 | 7% | 14 |
| 7 (2) |  | Pacific Rim Uprising (2018) | £655,858 | £1,505,679 | £3,160,865 | -60% | 2 |
| 8 (new) | | Duck Duck Goose (2018) | £653,832 | £653,832 | £653,832 | new | 1 |
| 9 (4) |  | Tomb Raider (2018) | £570,156 | £1,254,076 | £6,726,617 | -52% | 3 |
| 10 (6) |  | A Wrinkle In Time (2018) | £387,917 | £806,893 | £1,462,435 | -41% | 2 |
| 11 (new) | | Cosi Fan Tutte: Met Opera 2018 (2018) | £261,409 | £261,409 | £261,409 | new | 1 |
| 12 (new) |  | Baaghi 2 (2018) | £167,625 | £167,625 | £167,625 | new | 1 |
| 13 (new) | | Midnight Sun (2018) | £163,482 | £163,482 | £163,482 | new | 1 |
| 14 (10) |  | Game Night (2018) | £140,703 | £366,815 | £4,633,708 | -52% | 5 |
| 15 (7) |  | Unsane (2018) | £137,490 | £511,642 | £990,093 | -71% | 2 |