| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (2) |  | Darkest Hour (2018) | £2,672,022 | £5,068,943 | £15,224,229 | -19% | 3 |
| 2 (1) |  | Coco (2018) | £2,315,450 | £2,956,186 | £8,165,400 | -56% | 2 |
| 3 (new) |  | Maze Runner: The Death Cure (2018) | £2,247,915 | £2,247,915 | £2,247,915 | new | 1 |
| 4 (4) |  | The Greatest Showman (2017) | £2,042,450 | £3,100,197 | £19,965,506 | -3% | 5 |
| 5 (new) |  | Early Man (2018) | £2,020,653 | £2,020,653 | £2,020,653 | new | 1 |
| 6 (3) |  | The Post (2018) | £1,604,133 | £3,056,879 | £5,209,856 | -25% | 2 |
| 7 (6) |  | Three Billboards Outside Ebbing, Missouri (2018) | £1,249,691 | £2,373,456 | £7,605,591 | -23% | 3 |
| 8 (5) |  | Jumanji: Welcome to the Jungle (2017) | £1,219,880 | £1,669,174 | £34,147,183 | -34% | 6 |
| 9 (new) |  | Downsizing (2018) | £1,131,687 | £1,131,687 | £1,131,687 | new | 1 |
| 10 (new) |  | Padmaavat (2018) | £850,386 | £850,386 | £850,386 | new | 1 |
| 11 (7) |  | The Commuter (2018) | £660,094 | £1,427,218 | £3,029,898 | -59% | 2 |
| 12 (8) |  | Insidious: The Last Key (2018) | £505,604 | £918,458 | £4,582,081 | -51% | 3 |
| 13 (new) |  | 12 Strong (2018) | £421,514 | £421,514 | £421,514 | new | 1 |
| 14 (new) | | Tosca: Met Opera 2018 (2018) | £404,993 | £404,993 | £404,993 | new | 1 |
| 15 (9) |  | Star Wars: The Last Jedi (2017) | £339,915 | £677,607 | £82,125,212 | -61% | 7 |
| 16 (11) |  | Paddington 2 (2017) | £111,316 | £143,642 | £41,550,245 | -59% | 12 |
| 17 (13) |  | All the Money In the World (2018) | £54,482 | £146,034 | £3,056,470 | -70% | 4 |
| 18 (new) |  | Last Flag Flying (2017) | £16,867 | £16,867 | £16,867 | new | 1 |
| 19 (new) |  | Bhaagamathie (2018) | £13,401 | £13,401 | £13,401 | new | 1 |
| 20 (re) |  | Murder On the Orient Express (2017) | £6,047 | £6,047 | £24,114,701 | re | 12 |
| 21 (re) |  | The Death of Stalin (2017) | £2,782 | £2,782 | £5,101,605 | re | 14 |
| 22 (re) |  | Walk With Me (2017) | £1,918 | £1,918 | £128,260 | re | 3 |
| 23 (re) | | Exhibition On Screen: Cézanne 2018 (2018) | £1,336 | £1,336 | £85,288 | re | 1 |
| 24 (re) |  | Film Stars Don't Die In Liverpool (2017) | £1,298 | £1,298 | £1,009,273 | re | 10 |
| 25 (re) |  | Loving Vincent (2017) | £857 | £857 | £974,737 | re | 15 |
| 26 (re) | | Exhibition On Screen: Hockney 2017 (2017) | £805 | £805 | £81,533 | re | 4 |
| 27 (re) | | Blade of the Immortal (2017) | £647 | £647 | £99,830 | re | 7 |
| 28 (re) |  | Eric Clapton: Life In 12 Bars (2018) | £520 | £520 | £196,759 | re | 2 |
| 29 (re) |  | Suggs: My Life Story (2018) | £336 | £336 | £33,205 | re | 1 |
| 30 (re) |  | Dunkirk (2017) | £276 | £276 | £56,687,269 | re | 25 |
| 31 (re) |  | Justice League (2017) | £101 | £101 | £17,426,939 | re | 10 |