| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) | ![]() | Solo: A Star Wars Story (2018) | £3,147,338 | £7,846,175 | £13,907,406 | -48% | 2 |
| 2 (2) | ![]() | Deadpool 2 (2018) | £2,530,069 | £6,019,197 | £26,701,776 | -33% | 3 |
| 3 (3) | ![]() | Avengers: Infinity War (2018) | £1,058,425 | £2,685,637 | £68,824,457 | -13% | 6 |
| 4 (4) | ![]() | Sherlock Gnomes (2018) | £938,672 | £2,772,517 | £7,116,136 | 27% | 4 |
| 5 (new) | ![]() | Book Club (2018) | £720,858 | £720,858 | £720,858 | new | 1 |
| 6 (5) | ![]() | Show Dogs (2018) | £601,535 | £1,668,452 | £2,214,857 | 9% | 2 |
| 7 (6) | ![]() | I Feel Pretty (2018) | £255,587 | £595,206 | £5,062,342 | -8% | 5 |
| 8 (7) | ![]() | Blade Runner (1982) Rerelease | £213,737 | £314,829 | £3,013,001 | -6% | 16 |
| 9 (new) | Veere Di Wedding (2018) | £211,424 | £211,424 | £211,424 | new | 1 | |
| 10 (8) | ![]() | On Chesil Beach (2018) | £129,206 | £334,777 | £623,127 | -24% | 3 |
| 11 (10) | ![]() | Life of the Party (2018) | £113,800 | £250,998 | £1,660,250 | 1% | 4 |
| 12 (9) | ![]() | Peter Rabbit (2018) | £100,055 | £281,426 | £40,625,592 | -15% | 12 |
| 13 (new) | ![]() | Carry On Jatta 2 (2018) | £99,498 | £99,498 | £99,498 | new | 1 |
| 14 (27) | ![]() | 2001: A Space Odyssey (1968) Rerelease | £91,171 | £-62,977 | £318,236 | 94% | 31 |
| 15 (re) | ![]() | The Greatest Showman (2017) | £90,895 | £90,895 | £46,713,317 | re | 21 |