| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | A Star Is Born (2018) | £2,883,000 | £5,279,164 | £14,874,834 | -6% | 3 |
| 2 (new) |  | Halloween (2018) | £2,656,097 | £2,656,097 | £2,656,097 | new | 1 |
| 3 (new) |  | Goosebumps 2: Haunted Halloween (2018) | £2,119,165 | £2,119,165 | £2,119,165 | new | 1 |
| 4 (3) |  | Johnny English Strikes Again (2018) | £1,681,394 | £2,655,936 | £10,973,138 | -42% | 3 |
| 5 (2) |  | Venom (2018) | £1,568,433 | £2,922,406 | £16,652,223 | -48% | 3 |
| 6 (5) |  | Smallfoot (2018) | £1,427,000 | £2,008,664 | £4,332,853 | -39% | 2 |
| 7 (4) |  | First Man (2018) | £1,324,867 | £2,699,905 | £5,115,235 | -45% | 2 |
| 8 (new) |  | Hunter Killer (2018) | £368,082 | £368,082 | £368,082 | new | 1 |
| 9 (new) | | Samons Et Dalila: Met Opera 2018 (2018) | £176,888 | £176,888 | £176,888 | new | 1 |
| 10 (9) |  | The House With a Clock In Its Walls (2018) | £175,353 | £298,209 | £7,706,580 | -56% | 5 |
| 11 (10) |  | Night School (2018) | £175,178 | £367,230 | £4,195,857 | -51% | 4 |
| 12 (8) |  | Bad Times At the El Royale (2018) | £146,063 | £495,152 | £987,030 | -70% | 2 |
| 13 (7) |  | Kler (2018) | £140,427 | £250,091 | £1,256,232 | -86% | 2 |
| 14 (new) | | Badhaai Ho (2018) | £85,576 | £85,576 | £85,576 | new | 1 |
| 15 (17) |  | Christopher Robin (2018) | £74,021 | £91,106 | £14,576,828 | 45% | 10 |