UK Box Office 30th July, 2021
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (new) |  | The Suicide Squad (2021) | £3,252,028 | £3,252,028 | £3,252,028 | new | 1 |
| 2 (new) |  | Jungle Cruise (2021) | £2,241,651 | £2,241,651 | £2,241,651 | new | 1 |
| 3 (2) |  | Space Jam: A New Legacy (2021) | £1,286,798 | £2,956,260 | £6,569,403 | -8% | 3 |
| 4 (3) |  | The Croods: A New Age (2020) | £893,054 | £2,150,276 | £4,204,385 | 2% | 3 |
| 5 (1) |  | Black Widow (2021) | £788,028 | £2,231,332 | £16,061,449 | -44% | 4 |
| 6 (new) |  | Spirit Untamed (2021) | £592,154 | £592,154 | £592,154 | new | 1 |
| 7 (4) |  | Old (2021) | £512,071 | £1,267,966 | £2,134,826 | -41% | 2 |
| 8 (5) |  | The Forever Purge (2021) | £340,060 | £913,569 | £2,714,354 | -43% | 3 |
| 9 (6) |  | Fast and Furious 9 (2021) | £233,211 | £675,248 | £15,607,453 | -47% | 6 |
| 10 (8) |  | Peter Rabbit 2: The Runaway (2021) | £135,446 | £449,177 | £19,331,664 | -15% | 11 |
| 11 (new) |  | The Sparks Brother's (2021) | £123,005 | £123,005 | £123,005 | new | 1 |
| 12 (7) |  | Escape Room: Tournament of Champions (2021) | £75,069 | £261,021 | £931,526 | -57% | 3 |
| 13 (new) |  | Limbo (2020) | £50,600 | £50,600 | £50,600 | new | 1 |
| 14 (9) |  | A Quiet Place: Part II (2021) | £40,420 | £144,541 | £11,547,774 | -52% | 9 |
| 15 (13) |  | Summer of Soul (...Or, When the Revolution Could Not Be Televised) (2021) | £39,238 | £91,781 | £259,321 | -15% | 3 |
| 16 (17) |  | Tom & Jerry: The Movie (2021) | £32,645 | £91,529 | £1,204,984 | 7% | 11 |
| 17 (11) |  | In the Heights (2021) | £29,000 | £113,927 | £4,400,000 | -56% | 7 |
| 18 (10) | Off the Rails (2021) | £28,404 | £166,291 | £246,990 | -65% | 2 | |
| 19 (14) |  | Another Round (2020) | £27,665 | £70,988 | £718,738 | -32% | 5 |
| 20 (12) |  | Cruella (2021) | £25,976 | £156,928 | £9,312,971 | -59% | 10 |
| 21 (15) |  | The Conjuring: The Devil Made Me Do It (2021) | £21,000 | £32,280 | £9,400,000 | -48% | 10 |
| 22 (16) |  | The Hitman's Wife's Bodyguard (2021) | £16,285 | £60,926 | £3,789,067 | -57% | 7 |
| 23 (23) | The Gruffalo and Zog (2021) | £7,636 | £15,000 | £83,229 | 32% | 7 | |
| 24 (re) |  | Nowhere Special (2021) | £7,084 | £7,084 | £85,149 | RE | 2 |
| 25 (new) | The Most Beautiful Boy In the World (2021) | £5,384 | £5,384 | £5,384 | new | 1 | |
| 26 (19) |  | The Father (2021) | £5,348 | £21,572 | £2,031,592 | -60% | 8 |
| 27 (re) |  | Hey Duggee At the Cinema (2019) | £4,891 | £4,891 | £85,419 | RE | 27 |
| 28 (21) |  | Supernova (2020) | £4,361 | £17,575 | £733,729 | -53% | 6 |
| 29 (re) | Phil Lynott: Songs For While I'm Away (2021) | £2,366 | £2,366 | £16,394 | RE | 7 | |
| 30 (26) |  | Dream Horse (2021) | £1,308 | £5,743 | £709,778 | -32% | 9 |
| 31 (31) |  | After Love (2021) | £1,226 | £2,651 | £116,659 | 36% | 7 |
| 32 (32) |  | Ammonite (2020) | £1,070 | £3,223 | £188,867 | 30% | 10 |
| 33 (25) |  | Bings Animal Stories (2021) | £1,030 | £5,691 | £39,227 | -63% | 5 |
| 34 (36) | The Reason I Jump (2021) | £522 | £2,672 | £71,105 | 3% | 7 | |
| 35 (33) |  | In the Earth (2021) | £324 | £451 | £156,041 | -52% | 7 |
| 36 (re) | Bank Job (2021) | £281 | £281 | £1,755 | RE | 3 | |
| 37 (re) | Don't Go Gentle: A Film About IDLES (2021) | £249 | £249 | £13,781 | RE | 4 | |
| 38 (re) | Surge (2021) | £202 | £202 | £9,545 | RE | 6 | |
| 39 (re) | Sparkling the Story of Champagne (2021) | £201 | £201 | £2,713 | RE | 2 | |
| 40 (46) |  | Brassed Off (1996) Rerelease | £139 | £191 | £5,121 | 56% | 16 |
| 41 (re) |  | Bhaji On the Beach (1994) Rerelease | £16 | £16 | £2,562 | RE | 7 |
| 42 (28) |  | My Beautiful Laundrette (1985) Rerelease | £10 | £554 | £6,309 | -99% | 13 |