| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) | ![]() | Black Panther (2018) | £2,931,682 | £4,467,793 | £39,830,023 | -22% | 4 |
| 2 (3) | ![]() | The Greatest Showman (2017) | £1,567,366 | £2,071,569 | £37,336,900 | 21% | 11 |
| 3 (2) | ![]() | Red Sparrow (2018) | £1,166,764 | £2,176,470 | £4,019,594 | -37% | 2 |
| 4 (4) | ![]() | Game Night (2018) | £703,115 | £1,546,215 | £2,640,693 | -36% | 2 |
| 5 (5) | ![]() | Lady Bird (2017) | £703,115 | £1,349,960 | £3,973,500 | -24% | 3 |
| 6 (9) | ![]() | Finding Your Feet (2018) | £573,481 | £1,419,554 | £3,547,352 | 19% | 3 |
| 7 (10) | ![]() | The Shape of Water (2018) | £552,230 | £1,070,250 | £6,349,265 | 24% | 4 |
| 8 (7) | ![]() | Coco (2018) | £465,033 | £522,961 | £17,787,726 | -16% | 8 |
| 9 (8) | ![]() | I, Tonya (2017) | £407,933 | £815,380 | £2,826,908 | -25% | 3 |
| 10 (12) | ![]() | Three Billboards Outside Ebbing, Missouri (2018) | £359,714 | £773,605 | £13,903,885 | -11% | 9 |
| 11 (11) | ![]() | Early Man (2018) | £292,131 | £320,030 | £10,402,603 | -29% | 7 |
| 12 (new) | ![]() | You Were Never Really Here (2018) | £288,344 | £288,344 | £288,344 | new | 1 |
| 13 (new) | ![]() | Gringo (2018) | £215,029 | £215,029 | £215,029 | new | 1 |
| 14 (13) | ![]() | Fifty Shades Freed (2018) | £185,323 | £509,188 | £17,521,819 | -47% | 5 |
| 15 (new) | ![]() | Mamma Mia! (2008) Rerelase | £174,660 | £174,660 | £174,660 | re | 29 |