| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (new) | ![]() | Rampage (2018) | £4,109,247 | £4,109,247 | £4,109,247 | new | 1 |
| 2 (1) | ![]() | Peter Rabbit (2018) | £2,021,162 | £5,870,090 | £38,093,407 | -36% | 5 |
| 3 (2) | ![]() | A Quiet Place (2018) | £1,907,585 | £3,653,227 | £6,350,119 | -29% | 2 |
| 4 (3) | ![]() | Ready Player One (2018) | £1,183,259 | £3,017,798 | £14,501,485 | -51% | 3 |
| 5 (new) | ![]() | Truth Or Dare (2018) | £931,249 | £931,249 | £931,249 | new | 1 |
| 6 (7) | ![]() | The Greatest Showman (2017) | £623,091 | £1,430,037 | £44,928,180 | -8% | 16 |
| 7 (4) | ![]() | Love, Simon (2018) | £623,042 | £1,570,351 | £2,749,944 | -47% | 2 |
| 8 (5) | ![]() | Isle of Dogs (2018) | £502,487 | £1,191,813 | £5,131,027 | -41% | 3 |
| 9 (6) | ![]() | Black Panther (2018) | £452,734 | £367,956 | £49,457,708 | -34% | 9 |
| 10 (10) | Duck Duck Goose (2018) | £357,087 | £967,546 | £3,229,768 | -30% | 3 | |
| 11 (new) | ![]() | Pitbull Ostatni Pies (2018) | £276,451 | £276,451 | £276,451 | new | 1 |
| 12 (9) | ![]() | Blockers (2018) | £274,440 | £636,226 | £3,557,364 | -51% | 3 |
| 13 (8) | ![]() | Ghost Stories (2018) | £265,098 | £660,436 | £1,252,223 | -55% | 2 |
| 14 (new) | ![]() | Luisa Miller: Met Opera 2018 (2018) | £231,297 | £231,297 | £231,297 | new | 1 |
| 15 (re) | ![]() | Blade Runner (1982) Rerelease | £228,809 | £228,809 | £676,858 | re | 9 |
| 16 (11) | ![]() | Pacific Rim Uprising (2018) | £82,789 | £284,813 | £4,358,082 | -68% | 4 |
| 17 (13) | ![]() | Tomb Raider (2018) | £66,967 | £227,245 | £7,677,778 | -68% | 5 |
| 18 (new) | Custody (2018) | £46,916 | £46,916 | £46,916 | new | 1 | |
| 19 (new) | October (2018) | £37,887 | £37,887 | £37,887 | new | 1 | |
| 20 (24) | ![]() | Finding Your Feet (2018) | £35,871 | £104,894 | £5,541,417 | 19% | 8 |
| 21 (21) | ![]() | Three Billboards Outside Ebbing, Missouri (2018) | £32,009 | £64,259 | £15,077,066 | -18% | 14 |
| 22 (17) | ![]() | Early Man (2018) | £28,107 | £106,451 | £11,097,797 | -48% | 12 |
| 23 (20) | ![]() | Red Sparrow (2018) | £18,089 | £44,583 | £6,368,422 | -58% | 7 |
| 24 (new) | Golak Bugni Bank Te Batua (2018) | £12,851 | £12,851 | £12,851 | new | 1 | |
| 25 (30) | ![]() | Darkest Hour (2018) | £11,863 | £32,132 | £24,015,035 | -29% | 14 |
| 26 (new) | Western (2018) | £11,417 | £11,417 | £11,417 | new | 1 | |
| 27 (31) | ![]() | Mary Magdalene (2018) | £9,561 | £23,766 | £767,217 | -24% | 5 |
| 28 (new) | ![]() | Making the Grade (2018) | £8,364 | £8,364 | £8,364 | new | 1 |
| 29 (new) | ![]() | The Titan (2018) | £7,873 | £7,873 | £7,873 | new | 1 |
| 30 (new) | Marlina the Murderer In Four Acts (2018) | £5,218 | £5,218 | £5,218 | new | 1 | |
| 31 (32) | ![]() | You Were Never Really Here (2018) | £4,945 | £15,320 | £991,303 | -55% | 6 |
| 32 (34) | ![]() | Journeyman (2018) | £4,885 | £10,397 | £109,247 | -14% | 3 |
| 33 (33) | Monster Family (2018) | £3,726 | £10,228 | £351,825 | -43% | 7 | |
| 34 (37) | Westwood: Punk, Icon, Activist (2018) | £3,324 | £7,995 | £109,979 | 1% | 4 | |
| 35 (new) | A Gentle Creature (2018) | £3,282 | £3,282 | £3,282 | new | 1 | |
| 36 (new) | Dwie Korony (2018) | £3,204 | £3,204 | £3,204 | new | 1 | |
| 37 (new) | ![]() | Berliner Philharmoniker Live 2018: Kirill Petrenko and Yuja Wang (2017) | £3,134 | £3,134 | £3,134 | new | 2 |
| 38 (44) | Walk Like a Panther (2018) | £2,716 | £4,438 | £195,171 | 56% | 6 | |
| 39 (38) | ![]() | Phantom Thread (2018) | £2,542 | £12,377 | £2,698,239 | -11% | 11 |
| 40 (re) | ![]() | Macbeth: RSC Live 2018 (2018) | £2,420 | £2,420 | £606,819 | re | 1 |
| 41 (re) | ![]() | Lady Windermere's Fan 2018 (2018) | £2,213 | £2,213 | £435,929 | re | 2 |
| 42 (28) | Wind In the Willows: The Musical (2018) | £2,015 | £7,068 | £76,444 | -89% | 3 | |
| 43 (39) | My Generation (2018) | £1,782 | £2,583 | £282,836 | -27% | 5 | |
| 44 (new) | ![]() | Krishnarjuna Yudham (2018) | £1,196 | £1,196 | £1,196 | new | 1 |
| 45 (35) | Julius Caesar: NT Live 2018 (2018) | £941 | £20,691 | £592,737 | -74% | 4 | |
| 46 (43) | ![]() | The Mercy (2018) | £834 | £8,131 | £870,130 | -47% | 10 |
| 47 (51) | Psycho Vertical (2018) | £645 | £645 | £7,473 | 77% | 4 | |
| 48 (re) | ![]() | Exhibition On Screen: Van Gogh 2018 (2018) | £510 | £510 | £61,134 | re | 3 |
| 49 (new) | Alan Hinkes: The First Briton to Climb the Worlds Highest Mountains (2018) | £446 | £446 | £446 | new | 1 | |
| 50 (new) | ![]() | Can Feda (2018) | £440 | £440 | £440 | new | 1 |
| 51 (re) | ![]() | Cat On a Hot Tin Roof: NT Live 2018 (2018) | £418 | £418 | £741,624 | re | 7 |
| 52 (40) | ![]() | Paddington 2 (2017) | £339 | £2,918 | £42,640,868 | -85% | 23 |
| 53 (42) | The Islands and the Whales (2018) | £292 | £3,085 | £10,775 | -86% | 2 | |
| 54 (36) | ![]() | Journeys End (2018) | £273 | £1,366 | £509,775 | -92% | 11 |
| 55 (re) | Second Coming (2015) | £241 | £241 | £11,918 | re | 5 | |
| 56 (re) | ![]() | Dunkirk (2017) | £126 | £126 | £56,758,064 | re | 35 |
| 57 (47) | Dark River (2018) | £109 | £3,706 | £112,163 | -80% | 7 | |