| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) | ![]() | Ralph Breaks the Internet: Wreck-It Ralph 2 (2018) | £2,446,583 | £3,372,012 | £7,404,787 | -39% | 2 |
| 2 (4) | ![]() | The Grinch (2018) | £2,001,598 | £2,489,065 | £19,491,600 | -14% | 5 |
| 3 (2) | ![]() | Creed II (2018) | £1,717,275 | £2,998,611 | £5,990,120 | -43% | 2 |
| 4 (3) | ![]() | Fantastic Beasts: The Crimes of Grindelwald (2018) | £1,468,736 | £2,517,977 | £29,271,816 | -46% | 4 |
| 5 (5) | ![]() | Bohemian Rhapsody (2018) | £978,075 | £1,969,354 | £43,988,347 | -36% | 7 |
| 6 (7) | ![]() | Nativity Rocks! (2018) | £331,701 | £428,376 | £1,905,067 | -29% | 3 |
| 7 (new) | ![]() | The Old Man and the Gun (2018) | £317,831 | £317,831 | £317,831 | new | 1 |
| 8 (new) | Sorry to Bother You (2018) | £250,453 | £250,453 | £250,453 | new | 1 | |
| 9 (re) | Nutcracker: ROH London 2018 Ballet (2018) | £191,828 | £191,828 | £1,082,847 | re | 1 | |
| 10 (8) | ![]() | Robin Hood (2018) | £146,557 | £366,638 | £2,608,701 | -63% | 3 |
| 11 (11) | ![]() | The Nutcracker and the Four Realms (2018) | £140,213 | £188,582 | £5,300,866 | -31% | 6 |
| 12 (10) | ![]() | A Star Is Born (2018) | £115,224 | £307,040 | £28,905,294 | -48% | 10 |
| 13 (9) | ![]() | Widows (2018) | £113,572 | £251,376 | £6,043,546 | -49% | 5 |
| 14 (6) | ![]() | 2.0 (2018) | £89,058 | £158,424 | £691,653 | -83% | 2 |
| 15 (new) | ![]() | Die Hard (1988) 30th Anniversary | £86,628 | £86,628 | £86,628 | re | 11 |
| 16 (12) | ![]() | Disobedience (2018) | £72,507 | £176,648 | £370,555 | -63% | 2 |
| 17 (new) | Kedarnath (2018) | £56,039 | £56,039 | £56,039 | new | 1 | |
| 18 (new) | ![]() | Tulip Fever (2017) | £49,539 | £49,539 | £49,539 | new | 1 |
| 19 (new) | ![]() | White Boy Rick (2018) | £30,090 | £30,090 | £30,090 | new | 1 |
| 20 (19) | ![]() | Johnny English Strikes Again (2018) | £20,176 | £29,698 | £17,626,927 | -25% | 10 |
| 21 (new) | ![]() | The Snowman and the Snowdog (2012) | £18,135 | £18,135 | £18,135 | new | 1 |
| 22 (21) | ![]() | Peterloo (2018) | £15,200 | £44,238 | £1,171,310 | -11% | 6 |
| 23 (new) | Banjara (2018) | £14,444 | £14,444 | £14,444 | new | 1 | |
| 24 (25) | ![]() | Allelujah: NT Live 2018 (2018) | £8,373 | £23,368 | £892,059 | -5% | 6 |
| 25 (re) | ![]() | The Madness of George III: NT Live 2018 (2018) | £7,629 | £7,629 | £510,877 | re | 2 |
| 26 (new) | ![]() | The Belly of the Whale (2018) | £7,551 | £7,551 | £7,551 | new | 1 |
| 27 (20) | ![]() | The King and I From the London Palladium (2018) | £7,526 | £89,050 | £1,153,510 | -69% | 2 |
| 28 (28) | Nae Pasaran! (2018) | £5,873 | £7,735 | £78,597 | 62% | 6 | |
| 29 (18) | ![]() | Anna and the Apocalypse (2018) | £5,041 | £13,100 | £45,436 | -84% | 2 |
| 30 (new) | ![]() | Mug (2018) | £5,037 | £5,037 | £5,037 | new | 1 |
| 31 (new) | Return of the Hero (2018) | £4,588 | £4,588 | £4,588 | new | 1 | |
| 32 (new) | Hedefim Sensin (2018) | £4,173 | £4,173 | £4,173 | new | 1 | |
| 33 (new) | Merry Men: The Real Yoruba Demons (2018) | £3,385 | £3,385 | £3,385 | new | 1 | |
| 34 (new) | A Cool Fish (2018) | £3,274 | £3,274 | £3,274 | new | 1 | |
| 35 (31) | Juliet, Naked (2018) | £2,286 | £5,124 | £133,205 | 41% | 6 | |
| 36 (33) | Becoming Animal (2018) | £1,839 | £1,839 | £4,113 | 42% | 4 | |
| 37 (22) | ![]() | Surviving Christmas With the Relatives (2018) | £1,637 | £15,047 | £27,965 | -87% | 2 |
| 38 (26) | ![]() | The Wife (2018) | £1,114 | £5,688 | £1,683,763 | -79% | 11 |
| 39 (40) | ![]() | Mamma Mia! Here We Go Again (2018) | £1,111 | £1,319 | £65,581,551 | 64% | 21 |
| 40 (re) | ![]() | Funny Girl: The Musical (2018) | £859 | £859 | £638,775 | re | 6 |
| 41 (new) | Await Further Instructions (2018) | £836 | £836 | £836 | new | 1 | |
| 42 (38) | Nureyev (2018) | £503 | £1,259 | £84,356 | -39% | 12 | |
| 43 (new) | Kafalar Karisik (2018) | £413 | £413 | £413 | new | 1 | |
| 44 (30) | King Lear: NT Live 2018 (2018) | £330 | £330 | £730,584 | -78% | 8 | |
| 45 (re) | ![]() | Slaughterhouse Rulez (2018) | £317 | £317 | £571,541 | re | 5 |
| 46 (39) | ![]() | Postcards From London (2018) | £240 | £2,028 | £8,040 | -70% | 3 |
| 47 (35) | ![]() | Troilus and Cressida: RSC Live 2018 (2018) | £224 | £1,466 | £148,459 | -77% | 4 |
| 48 (re) | ![]() | Possum (2018) | £220 | £220 | £26,098 | re | 5 |
| 49 (re) | Exhibition On Screen: Degas Passion For Perfection (2018) | £216 | £216 | £76,279 | re | 4 | |
| 50 (32) | ![]() | King of Thieves (2018) | £177 | £3,766 | £6,043,321 | -86% | 12 |
| 51 (27) | ![]() | They Shall Not Grow Old (2018) | £174 | £174 | £1,426,006 | -94% | 8 |
| 52 (43) | Sgt. Stubby: An Unlikely Hero (2018) | £50 | £50 | £138,325 | -54% | 16 | |