| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Venom (2018) | £8,031,342 | £8,031,342 | £8,031,342 | new | 1 |
| 2 (new) |  | Johnny English Strikes Again (2018) | £4,117,692 | £4,117,692 | £4,117,692 | new | 1 |
| 3 (new) |  | A Star Is Born (2018) | £4,100,196 | £4,100,196 | £4,100,196 | new | 1 |
| 4 (2) |  | The House With a Clock In Its Walls (2018) | £902,203 | £1,285,599 | £6,806,751 | -42% | 3 |
| 5 (1) |  | Night School (2018) | £860,262 | £1,526,541 | £3,122,918 | -46% | 2 |
| 6 (3) |  | A Simple Favour (2018) | £484,975 | £1,068,043 | £4,475,268 | -52% | 3 |
| 7 (new) |  | Aida: Met Opera 2018 (2018) | £302,178 | £302,178 | £302,178 | new | 1 |
| 8 (4) |  | Crazy Rich Asians (2018) | £281,478 | £583,859 | £5,403,572 | -62% | 4 |
| 9 (5) |  | The Nun (2018) | £243,153 | £502,180 | £11,099,719 | -63% | 5 |
| 10 (7) |  | The Wife (2018) | £228,950 | £531,388 | £924,023 | -42% | 2 |
| 11 (11) |  | Incredibles 2 (2018) | £219,928 | £239,469 | £55,764,462 | -8% | 13 |
| 12 (6) |  | King of Thieves (2018) | £197,079 | £602,970 | £5,579,610 | -68% | 4 |
| 13 (12) |  | Hotel Transylvania 3: Summer Vacation (2018) | £156,631 | £170,412 | £19,286,607 | -24% | 11 |
| 14 (9) |  | Christopher Robin (2018) | £148,412 | £191,447 | £14,417,406 | -50% | 8 |
| 15 (new) | | The Winter's Tale Live From Shakespeares Globe (2018) | £113,089 | £113,089 | £113,089 | new | 1 |
| 16 (15) | | Black '47 (2018) | £71,917 | £168,461 | £1,512,749 | -49% | 5 |
| 17 (13) |  | Mamma Mia! Here We Go Again (2018) | £61,719 | £154,606 | £65,376,700 | -66% | 12 |
| 18 (new) |  | Andhadhun (2018) | £55,990 | £55,990 | £55,990 | new | 1 |
| 19 (19) | | The Intent 2: The Come Up (2018) | £31,944 | £71,705 | £389,035 | -64% | 3 |
| 20 (new) | | Loveyatri (2018) | £28,823 | £28,823 | £28,823 | new | 1 |
| 21 (new) | | Blindspotting (2018) | £28,231 | £28,231 | £28,231 | new | 1 |
| 22 (17) |  | The Little Stranger (2018) | £25,293 | £106,688 | £701,643 | -77% | 3 |
| 23 (23) |  | Cold War (2018) | £23,761 | £56,081 | £1,026,942 | -38% | 6 |
| 24 (new) |  | 96 (2018) | £22,949 | £22,949 | £22,949 | new | 1 |
| 25 (new) | | Afsar (2018) | £19,775 | £19,775 | £19,775 | new | 1 |
| 26 (new) | | Kusama Infinity (2018) | £16,532 | £16,532 | £16,532 | new | 1 |
| 27 (21) |  | Mission:Impossible - Fallout (2018) | £15,919 | £52,858 | £24,373,443 | -77% | 11 |
| 28 (new) | | Exes Baggage (2018) | £15,738 | £15,738 | £15,738 | new | 1 |
| 29 (24) |  | The Children Act (2018) | £11,996 | £64,991 | £2,742,321 | -65% | 7 |
| 30 (new) | | Tehran Taboo (2018) | £11,415 | £11,415 | £11,415 | new | 1 |
| 31 (26) | | Matangi / Maya / M.I.A. (2018) | £7,891 | £23,810 | £113,440 | -61% | 3 |
| 32 (28) |  | Yardie (2018) | £7,200 | £13,890 | £1,136,320 | -60% | 6 |
| 33 (new) | | Columbus (2017) | £5,085 | £5,085 | £5,085 | new | 1 |
| 34 (30) | | Nureyev (2018) | £5,045 | £19,276 | £66,338 | -21% | 3 |
| 35 (new) | | Nota None of the Above (2018) | £4,777 | £4,777 | £4,777 | new | 1 |
| 36 (new) | | Grace and Goliath (2018) | £4,530 | £4,530 | £4,530 | new | 1 |
| 37 (32) | | Redcon 1 (2018) | £3,376 | £6,254 | £11,968 | -41% | 2 |
| 38 (new) | | Female Human Animal (2018) | £3,140 | £3,140 | £3,140 | new | 1 |
| 39 (new) | | For Molly (2018) | £3,042 | £3,042 | £3,042 | new | 1 |
| 40 (39) | | Sgt. Stubby: An Unlikely Hero (2018) | £2,627 | £2,627 | £118,774 | -9% | 9 |
| 41 (37) | | Hurricane (2018) | £1,564 | £6,591 | £120,299 | -53% | 5 |
| 42 (new) | | Strangeways Here We Come (2018) | £1,502 | £1,502 | £1,502 | new | 1 |
| 43 (67) |  | Apostasy (2018) | £1,137 | £1,425 | £331,607 | 92% | 11 |
| 44 (34) |  | Sherlock Gnomes (2018) | £944 | £845 | £9,450,042 | -80% | 22 |
| 45 (60) | | Ocean's Our Blue Planet (2018) | £921 | £999 | £3,369 | 54% | 5 |
| 46 (new) | | Jalouse (2018) | £824 | £824 | £824 | new | 1 |
| 47 (41) |  | The Festival (2018) | £746 | £1,430 | £3,438,384 | -62% | 8 |
| 48 (54) |  | Thomas & Friends: Big World Big Adventures: The Movie (2018) | £666 | £734 | £498,974 | -14% | 12 |
| 49 (re) |  | The Bookshop (2018) | £390 | £390 | £419,938 | re | 12 |
| 50 (46) | | Swimming With Men (2018) | £379 | £3,809 | £462,350 | -74% | 14 |
| 51 (50) | | The More You Ignore Me (2018) | £345 | £1,167 | £68,366 | -65% | 14 |
| 52 (36) | | Two For Joy (2018) | £340 | £3,613 | £6,984 | -90% | 2 |
| 53 (55) | | Julie: NT Live 2018 (2018) | £336 | £3,397 | £234,159 | -51% | 4 |
| 54 (re) |  | Der Rosenkavalier: Glyndebourne 2014 (2014) | £287 | £287 | £110,388 | re | 3 |
| 55 (53) | | Patrick (2018) | £169 | £18,520 | £1,229,968 | -79% | 15 |
| 56 (61) |  | Jurassic World: Fallen Kingdom (2018) | £157 | £157 | £41,587,803 | -44% | 18 |
| 57 (64) |  | Peter Rabbit (2018) | £153 | £153 | £41,074,761 | 37% | 30 |
| 58 (re) |  | The Guernsey Literary and Potato Peel Pie Society (2018) | £89 | £89 | £5,935,973 | re | 22 |
| 59 (22) |  | Soft Cell: One Final Time - Live Concert From London (2018) | £80 | £4,120 | £70,198 | -100% | 2 |
| 60 (new) | | Blue Iguana (2018) | £37 | £37 | £37 | new | 1 |
| 61 (65) | | The Eyes of Orson Welles (2018) | £36 | £36 | £34,462 | -61% | 8 |