| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) | ![]() | Peter Rabbit (2018) | £4,595,239 | £6,365,880 | £13,639,087 | -37% | 2 |
| 2 (new) | ![]() | Pacific Rim Uprising (2018) | £1,655,186 | £1,655,186 | £1,655,186 | new | 1 |
| 3 (3) | ![]() | Black Panther (2018) | £1,308,281 | £2,112,919 | £44,892,064 | -30% | 6 |
| 4 (2) | ![]() | Tomb Raider (2018) | £1,186,436 | £2,390,625 | £5,472,541 | -62% | 2 |
| 5 (4) | ![]() | The Greatest Showman (2017) | £753,420 | £1,208,746 | £40,112,949 | -29% | 13 |
| 6 (new) | ![]() | A Wrinkle In Time (2018) | £655,542 | £655,542 | £655,542 | new | 1 |
| 7 (new) | ![]() | Unsane (2018) | £478,451 | £478,451 | £478,451 | new | 1 |
| 8 (new) | ![]() | Blade Runner (1982) Rerelease | £349,492 | £349,492 | £349,492 | re | 8 |
| 9 (5) | ![]() | Red Sparrow (2018) | £297,675 | £629,350 | £5,907,449 | -49% | 4 |
| 10 (6) | ![]() | Game Night (2018) | £295,869 | £616,608 | £4,266,893 | -45% | 4 |
| 11 (9) | ![]() | Finding Your Feet (2018) | £168,189 | £553,102 | £4,990,777 | -41% | 5 |
| 12 (7) | ![]() | Lady Bird (2017) | £149,381 | £376,970 | £5,079,887 | -49% | 5 |
| 13 (8) | ![]() | The Shape of Water (2018) | £143,962 | £333,985 | £7,312,082 | -50% | 6 |
| 14 (13) | ![]() | Three Billboards Outside Ebbing, Missouri (2018) | £143,670 | £306,158 | £14,693,527 | -32% | 11 |
| 15 (14) | ![]() | I, Tonya (2017) | £125,594 | £270,893 | £3,564,608 | -39% | 5 |
| 16 (16) | ![]() | You Were Never Really Here (2018) | £101,853 | £206,414 | £812,368 | -30% | 3 |
| 17 (new) | ![]() | Sajjan Singh Rangroot (2018) | £82,663 | £82,663 | £82,663 | new | 1 |
| 18 (new) | Kobieta Sukcesu (2018) | £60,690 | £60,690 | £60,690 | new | 1 | |
| 19 (11) | ![]() | Mary Magdalene (2018) | £60,197 | £321,695 | £560,619 | -75% | 2 |
| 20 (new) | Hichki (2018) | £58,356 | £58,356 | £58,356 | new | 1 | |
| 21 (new) | ![]() | Mark Felt: The Man Who Brought Down the White House (2017) | £44,911 | £44,911 | £44,911 | new | 1 |
| 22 (new) | Westwood: Punk, Icon, Activist (2018) | £42,836 | £42,836 | £42,836 | new | 1 | |
| 23 (19) | ![]() | Darkest Hour (2018) | £42,029 | £107,933 | £23,858,323 | -36% | 11 |
| 24 (new) | I Got Life (2018) | £39,876 | £39,876 | £39,876 | new | 1 | |
| 25 (new) | ![]() | Exhibition On Screen: Van Gogh 2018 (2018) | £34,415 | £34,415 | £34,415 | new | 1 |
| 26 (17) | ![]() | Early Man (2018) | £34,324 | £49,466 | £10,552,561 | -60% | 9 |
| 27 (new) | ![]() | Proud Mary (2018) | £26,291 | £26,291 | £26,291 | new | 1 |
| 28 (22) | ![]() | Phantom Thread (2018) | £13,610 | £35,807 | £2,647,265 | -12% | 8 |
| 29 (new) | The Third Murder (2018) | £9,171 | £9,171 | £9,171 | new | 1 | |
| 30 (21) | Monster Family (2018) | £9,145 | £24,942 | £313,657 | -73% | 4 | |
| 31 (new) | Have a Nice Day (2018) | £7,769 | £7,769 | £7,769 | new | 1 | |
| 32 (re) | ![]() | Lady Windermere's Fan 2018 (2018) | £5,284 | £5,284 | £402,649 | re | 1 |
| 33 (re) | Julius Caesar: NT Live 2018 (2018) | £3,448 | £3,448 | £544,251 | re | 1 | |
| 34 (27) | ![]() | Journeys End (2018) | £3,073 | £9,934 | £487,185 | 46% | 8 |
| 35 (23) | ![]() | The Mercy (2018) | £2,373 | £16,740 | £843,668 | -74% | 7 |
| 36 (re) | The Winter's Tale: ROH London 2017/18 (2018) | £2,297 | £2,297 | £415,690 | re | 2 | |
| 37 (24) | Walk Like a Panther (2018) | £2,199 | £12,621 | £180,621 | -68% | 3 | |
| 38 (10) | My Generation (2018) | £1,943 | £9,970 | £269,960 | -99% | 2 | |
| 39 (re) | ![]() | Walk With Me (2017) | £1,608 | £1,608 | £170,259 | re | 10 |
| 40 (31) | ![]() | Paddington 2 (2017) | £1,358 | £3,262 | £42,628,663 | 4% | 20 |
| 41 (new) | Gholam (2018) | £1,266 | £1,266 | £1,266 | new | 1 | |
| 42 (re) | ![]() | Film Stars Don't Die In Liverpool (2017) | £1,237 | £1,237 | £1,107,468 | re | 15 |
| 43 (26) | ![]() | All the Money In the World (2018) | £876 | £2,270 | £3,247,731 | -57% | 12 |
| 44 (32) | ![]() | Cat On a Hot Tin Roof: NT Live 2018 (2018) | £644 | £1,837 | £735,277 | -47% | 5 |
| 45 (35) | ![]() | The Ice King (2018) | £567 | £866 | £13,037 | -45% | 5 |
| 46 (re) | ![]() | The Death of Stalin (2017) | £508 | £508 | £5,131,076 | re | 19 |
| 47 (new) | Crowhurst (2018) | £322 | £322 | £322 | new | 1 | |
| 48 (28) | Carmen: ROH London 2017/18 (2018) | £91 | £7,387 | £705,248 | -94% | 3 | |
| 49 (39) | ![]() | Dunkirk (2017) | £13 | £325 | £56,757,109 | -98% | 33 |