| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Black Panther (2018) | £17,700,000 | £17,700,000 | £17,700,000 | new | 1 |
| 2 (1) |  | Fifty Shades Freed (2018) | £2,730,197 | £7,229,325 | £13,361,739 | -55% | 2 |
| 3 (new) |  | The Shape of Water () | £2,466,217 | £2,466,217 | £2,466,217 | new | 1 |
| 4 (2) |  | The Greatest Showman (2017) | £1,927,367 | £4,308,370 | £30,414,668 | 0% | 8 |
| 5 (3) |  | Coco () | £1,400,000 | £3,581,552 | £15,256,165 | 13% | 5 |
| 6 (4) |  | Early Man () | £1,154,533 | £3,234,563 | £8,540,993 | 2% | 4 |
| 7 (5) |  | Darkest Hour (2018) | £553,149 | £1,285,280 | £21,940,828 | -44% | 6 |
| 8 (9) |  | Jumanji: Welcome to the Jungle () | £456,414 | £1,079,757 | £37,197,072 | -19% | 9 |
| 9 (8) |  | Three Billboards Outside Ebbing, Missouri () | £408,480 | £767,482 | £11,366,703 | -31% | 6 |
| 10 (6) |  | Maze Runner: The Death Cure (2018) | £326,033 | £916,685 | £6,389,338 | -56% | 4 |
| 11 (new) |  | Father Figures (2017) | £250,464 | £250,464 | £250,464 | new | 1 |
| 12 (7) |  | Den of Thieves (2018) | £243,111 | £541,607 | £2,790,151 | -59% | 3 |
| 13 (16) |  | Paddington 2 (2017) | £205,479 | £599,527 | £42,453,589 | -2% | 15 |
| 14 (10) |  | The Post (2018) | £205,318 | £483,165 | £8,839,133 | -56% | 5 |
| 15 (11) |  | Phantom Thread () | £186,105 | £489,938 | £2,148,930 | -57% | 3 |
| 16 (13) |  | The Mercy (2018) | £63,078 | £328,654 | £629,792 | -79% | 2 |
| 17 (new) |  | Detective Chinatown 2 () | £57,024 | £57,024 | £57,024 | new | 1 |
| 18 (new) | | Laavaan Phere () | £36,662 | £36,662 | £36,662 | new | 1 |
| 19 (23) |  | Journeys End () | £31,602 | £73,014 | £358,115 | -18% | 3 |
| 20 (21) |  | Star Wars: The Last Jedi () | £31,185 | £74,887 | £82,620,648 | -46% | 10 |
| 21 (20) |  | The Commuter (2018) | £21,859 | £52,321 | £3,922,135 | -70% | 5 |
| 22 (new) | | The Monkey King 3: Kingdom of Women () | £9,040 | £9,040 | £9,040 | new | 1 |
| 23 (new) |  | Naachiyaar () | £8,279 | £8,279 | £8,279 | new | 1 |
| 24 (re) | | Twelfth Night: RSC Live 2018 (2018) | £4,392 | £4,392 | £584,211 | re | 1 |
| 25 (new) | | Hadi Be Oglum (2018) | £3,235 | £3,235 | £3,235 | new | 1 |
| 26 (34) |  | Dunkirk (2017) | £1,944 | £2,675 | £56,715,224 | 76% | 28 |
| 27 (25) |  | All the Money In the World () | £1,700 | £14,021 | £3,176,255 | -73% | 7 |
| 28 (26) |  | Walk With Me () | £1,420 | £6,168 | £154,571 | -71% | 6 |
| 29 (31) |  | The Death of Stalin (2017) | £928 | £3,009 | £5,119,934 | -55% | 17 |
| 30 (35) |  | Eric Clapton: Life In 12 Bars (2018) | £640 | £2,023 | £206,193 | 63% | 5 |
| 31 (30) |  | Loving Vincent () | £603 | £5,380 | £1,004,291 | -76% | 18 |
| 32 (32) |  | Film Stars Don't Die In Liverpool (2017) | £565 | £16,399 | £1,045,664 | -72% | 13 |
| 33 (re) | | Exhibition On Screen: Cézanne 2018 () | £552 | £552 | £125,952 | re | 3 |