| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | Onward (2020) | £1,272,748 | £1,872,186 | £5,291,686 | -63% | 2 |
| 2 (2) |  | The Invisible Man (2020) | £827,746 | £1,553,163 | £6,555,330 | -46% | 3 |
| 3 (new) |  | The Hunt (2020) | £542,475 | £542,475 | £542,475 | new | 1 |
| 4 (new) |  | Bloodshot (2020) | £444,917 | £444,917 | £444,917 | new | 1 |
| 5 (3) |  | Military Wives (2020) | £407,409 | £1,398,326 | £2,366,794 | -58% | 2 |
| 6 (4) |  | Sonic the Hedgehog (2020) | £397,171 | £527,706 | £18,986,843 | -58% | 5 |
| 7 (new) |  | Misbehaviour (2020) | £347,643 | £347,643 | £347,643 | new | 1 |
| 8 (new) |  | My Spy (2020) | £345,574 | £345,574 | £345,574 | new | 1 |
| 9 (5) |  | Parasite (2019) | £235,613 | £511,609 | £11,971,951 | -56% | 6 |
| 10 (6) |  | Dark Waters (2020) | £224,252 | £519,071 | £2,411,637 | -55% | 3 |
| 11 (8) |  | Dolittle (2020) | £147,740 | £187,955 | £15,880,947 | -59% | 6 |
| 12 (7) |  | Fantasy Island (2020) | £136,885 | £332,286 | £725,143 | -65% | 2 |
| 13 (11) |  | 1917 (2019) | £108,947 | £271,538 | £43,707,991 | -56% | 10 |
| 14 (10) |  | Emma. (2020) | £94,782 | £339,134 | £7,411,754 | -67% | 5 |
| 15 (new) |  | Chal Mera Putt 2 (2020) | £89,905 | £89,905 | £89,905 | new | 1 |
| 16 (12) |  | The Call of the Wild (2020) | £65,000 | £107,300 | £2,770,000 | -65% | 4 |
| 17 (re) |  | Spies In Disguise (2019) | £57,000 | £57,000 | £7,640,000 | re | 8 |
| 18 (new) | | Bacurau (2020) | £43,906 | £43,906 | £43,906 | new | 1 |
| 19 (14) |  | Birds of Prey (And the Fantabulous Emancipation of One Harley Quinn) (2020) | £42,000 | £104,313 | £8,810,000 | -69% | 6 |
| 20 (re) |  | Portrait of a Lady On Fire (2020) | £41,727 | £41,727 | £543,137 | re | 2 |
| 21 (new) |  | Calm With Horses (2020) | £39,094 | £39,094 | £39,094 | new | 1 |
| 22 (new) | | Angrezi Medium (2020) | £24,294 | £24,294 | £24,294 | new | 1 |
| 23 (new) | | Cunningham (2020) | £20,002 | £20,002 | £20,002 | new | 1 |
| 24 (new) |  | And Then We Danced (2020) | £19,250 | £19,250 | £19,250 | new | 1 |
| 25 (16) |  | Jumanji: The Next Level (2019) | £18,802 | £811,305 | £38,429,186 | -63% | 14 |
| 26 (new) |  | Bad Boy (2020) | £18,117 | £18,117 | £18,117 | new | 1 |
| 27 (re) |  | The Gentlemen (2020) | £16,920 | £16,920 | £12,050,000 | re | 8 |
| 28 (re) |  | The Elephant Man (1980) | £13,091 | £13,091 | £4,309,355 | re | 10 |
| 29 (re) |  | Queen and Slim (2020) | £11,508 | £11,508 | £1,390,000 | re | 4 |
| 30 (28) | | Cyrano De Bergerac: NT Live 2020 (2020) | £10,963 | £92,950 | £885,643 | 47% | 2 |
| 31 (re) |  | Brahms: The Boy II (2020) | £10,727 | £10,727 | £1,040,000 | re | 3 |
| 32 (re) |  | PAW Patrol: Ready, Race, Rescue! (2020) | £9,000 | £9,000 | £1,900,000 | re | 6 |
| 33 (19) |  | Greed (2019) | £7,590 | £22,878 | £806,311 | -66% | 4 |
| 34 (re) |  | Like a Boss (2020) | £7,000 | £7,000 | £1,000,000 | re | 3 |
| 35 (22) |  | The Personal History of David Copperfield (2020) | £6,925 | £51,407 | £6,356,987 | -54% | 8 |
| 36 (20) |  | A Shaun the Sheep Movie: Farmageddon (2019) | £6,868 | £7,178 | £7,122,483 | -64% | 22 |
| 37 (new) |  | Ikko Mikke (2020) | £5,635 | £5,635 | £5,635 | new | 1 |
| 38 (26) |  | Mr. Jones (2020) | £3,807 | £12,680 | £124,297 | -47% | 6 |
| 39 (new) | | Run (2020) | £3,301 | £3,301 | £3,301 | new | 1 |
| 40 (27) |  | Star Wars: The Rise of Skywalker (2019) | £3,048 | £7,011 | £58,262,032 | -57% | 13 |
| 41 (31) | | Kinky Boots: The Musical (2020) | £1,941 | £49,797 | £1,413,429 | -56% | 5 |
| 42 (new) | | Zengo (2020) | £1,021 | £1,021 | £1,021 | new | 1 |
| 43 (25) |  | Escape From Pretoria (2020) | £929 | £3,249 | £10,433 | -87% | 2 |
| 44 (new) |  | Dharala Prabhu (2020) | £878 | £878 | £878 | new | 1 |
| 45 (re) | | Nick Mason's Saucerful of Secrets: Live At the Roundhouse (2020) | £730 | £730 | £30,566 | re | 1 |
| 46 (re) |  | Present Laughter: NT Live 2019 (2019) | £726 | £726 | £1,343,980 | re | 13 |
| 47 (38) |  | Cats (2019) | £498 | £22,323 | £11,987,192 | -50% | 13 |
| 48 (29) |  | Sacrilege (2020) | £234 | £5,731 | £10,921 | -95% | 2 |
| 49 (re) | | Show Me the Picture: The Story of Jim Marshall (2020) | £112 | £112 | £6,359 | re | 3 |
| 50 (39) | | Waiting For Anya (2020) | £90 | £519 | £29,655 | -86% | 4 |