| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Darkest Hour (2018) | £4,058,356 | £4,058,356 | £4,058,356 | new | 1 |
| 2 (1) |  | Jumanji: Welcome to the Jungle (2017) | £2,435,626 | £3,639,624 | £29,912,422 | -37% | 4 |
| 3 (new) |  | Three Billboards Outside Ebbing, Missouri (2018) | £2,361,782 | £2,361,782 | £2,361,782 | new | 1 |
| 4 (3) |  | The Greatest Showman (2017) | £2,142,337 | £3,538,428 | £13,537,211 | -11% | 3 |
| 5 (new) |  | Insidious: The Last Key (2018) | £1,840,992 | £1,840,992 | £1,840,992 | new | 1 |
| 6 (2) |  | Star Wars: The Last Jedi (2017) | £1,717,106 | £3,143,076 | £79,867,006 | -52% | 5 |
| 7 (5) |  | Pitch Perfect 3 (2017) | £840,059 | £1,475,667 | £14,147,058 | -49% | 4 |
| 8 (6) |  | All the Money In the World (2018) | £539,706 | £1,255,528 | £2,417,003 | -54% | 2 |
| 9 (4) |  | Mollys Game (2018) | £522,456 | £1,094,812 | £3,378,232 | -77% | 2 |
| 10 (7) |  | Paddington 2 (2017) | £401,521 | £640,335 | £41,056,106 | -61% | 10 |
| 11 (8) |  | Ferdinand (2017) | £318,078 | £422,088 | £8,814,406 | -62% | 4 |
| 12 (new) |  | Eric Clapton: Life In 12 Bars (2018) | £183,051 | £183,051 | £183,051 | new | 1 |
| 13 (new) |  | Thalaivaa Time to Lead (2018) | £90,582 | £90,582 | £90,582 | new | 1 |
| 14 (9) |  | Hostiles (2018) | £83,837 | £390,032 | £770,750 | -78% | 2 |
| 15 (10) |  | Daddy's Home 2 (2017) | £68,850 | £117,761 | £14,296,957 | -67% | 8 |