| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Fantastic Beasts: The Crimes of Grindelwald (2018) | £12,318,966 | £12,318,966 | £12,318,966 | new | 1 |
| 2 (1) |  | The Grinch (2018) | £3,906,597 | £5,024,546 | £10,044,223 | -22% | 2 |
| 3 (2) |  | Bohemian Rhapsody (2018) | £3,021,648 | £5,946,627 | £34,854,038 | -34% | 4 |
| 4 (3) |  | Widows (2018) | £882,243 | £1,908,313 | £4,317,425 | -63% | 2 |
| 5 (4) |  | A Star Is Born (2018) | £746,986 | £1,643,237 | £27,107,688 | -40% | 7 |
| 6 (new) |  | Burn the Stage: The Movie (2018) | £644,308 | £644,308 | £644,308 | new | 1 |
| 7 (5) |  | The Nutcracker and the Four Realms (2018) | £610,974 | £911,509 | £4,326,066 | -45% | 3 |
| 8 (8) |  | Johnny English Strikes Again (2018) | £215,252 | £329,321 | £17,411,220 | -55% | 7 |
| 9 (new) |  | Suspiria (2018) | £166,257 | £166,257 | £166,257 | new | 1 |
| 10 (9) |  | Smallfoot (2018) | £161,068 | £190,877 | £10,840,021 | -55% | 6 |
| 11 (6) |  | Overlord (2018) | £133,915 | £476,388 | £1,154,232 | -80% | 2 |
| 12 (new) |  | Hell Fest (2018) | £78,116 | £78,116 | £78,116 | new | 1 |
| 13 (13) |  | Venom (2018) | £69,753 | £215,198 | £20,123,186 | -64% | 7 |
| 14 (11) |  | Goosebumps 2: Haunted Halloween (2018) | £65,184 | £86,193 | £7,520,870 | -74% | 5 |
| 15 (7) | | Thugs of Hindostan (2018) | £63,101 | £184,484 | £682,147 | -87% | 2 |