UK Box Office 4th June, 2021
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (new) |  | A Quiet Place: Part II (2021) | £3,567,048 | £3,567,048 | £3,567,048 | new | 1 |
| 2 (2) |  | Peter Rabbit 2: The Runaway (2021) | £2,045,576 | £5,131,096 | £12,615,157 | 0% | 3 |
| 3 (3) |  | Cruella (2021) | £1,284,098 | £3,041,341 | £4,494,976 | -12% | 2 |
| 4 (1) |  | The Conjuring: The Devil Made Me Do It (2021) | £1,039,094 | £2,604,170 | £5,312,625 | -62% | 2 |
| 5 (new) |  | Dream Horse (2021) | £209,389 | £209,389 | £209,389 | new | 1 |
| 6 (5) |  | Godzilla Vs. Kong (2021) | £159,230 | £477,359 | £2,213,658 | -37% | 3 |
| 7 (9) |  | Tom & Jerry: The Movie (2021) | £96,797 | £236,228 | £694,704 | 18% | 3 |
| 8 (6) |  | Nomadland (2021) | £87,649 | £261,576 | £1,694,952 | -52% | 3 |
| 9 (10) |  | Raya and the Last Dragon (2021) | £81,460 | £217,591 | £548,132 | 18% | 3 |
| 10 (4) |  | Demon Slayer The Movie: Mugen Train (2020) | £74,827 | £308,705 | £1,001,786 | -89% | 2 |
| 11 (7) |  | Spiral: From the Book of Saw (2021) | £65,571 | £185,875 | £1,387,528 | -58% | 3 |
| 12 (new) | Felix and the Hidden Treasure (2021) | £43,011 | £43,011 | £43,011 | new | 1 | |
| 13 (new) |  | The Lord of the Rings: The Return of the King (2003) Extended Edition | £24,651 | £24,651 | £24,651 | RE | 16 |
| 14 (new) |  | After Love (2021) | £24,495 | £24,495 | £24,495 | new | 1 |
| 15 (new) | Second Half (2021) | £23,788 | £23,788 | £23,788 | new | 1 | |
| 16 (12) |  | Those Who Wish Me Dead (2021) | £15,000 | £57,641 | £532,000 | -71% | 3 |
| 17 (11) |  | Mortal Kombat (2021) | £15,000 | £61,838 | £527,000 | -72% | 3 |
| 18 (new) |  | Land (2021) | £14,615 | £14,615 | £14,615 | new | 1 |
| 19 (14) |  | First Cow (2020) | £12,353 | £45,518 | £67,380 | -43% | 2 |
| 20 (13) |  | The Unholy (2021) | £10,467 | £38,818 | £604,593 | -72% | 3 |
| 21 (27) |  | The Witches (2020) | £7,514 | £8,028 | £15,422 | 86% | 3 |
| 22 (new) | Gunda (2021) | £5,344 | £5,344 | £5,344 | new | 1 | |
| 23 (8) | Hidden Agenda (2021) | £4,513 | £16,010 | £120,030 | -96% | 2 | |
| 24 (22) |  | Ammonite (2020) | £3,708 | £9,344 | £160,930 | 1% | 3 |
| 25 (32) |  | Hey Duggee At the Cinema (2019) | £3,704 | £3,896 | £51,968 | 84% | 20 |
| 26 (30) |  | Six Minutes to Midnight (2021) | £2,221 | £4,584 | £24,190 | 66% | 3 |
| 27 (new) |  | The Killing of Two Lovers (2021) | £2,014 | £2,014 | £2,014 | new | 1 |
| 28 (re) |  | Thomas & Friends: The Great Race (2016) | £1,739 | £1,739 | £301,234 | RE | 10 |
| 29 (re) |  | Timmy's Cinema Adventure (2020) | £1,739 | £1,739 | £59,713 | RE | 13 |
| 30 (21) |  | Rare Beasts (2021) | £1,556 | £5,087 | £37,706 | -62% | 3 |
| 31 (re) |  | The Secret Garden (2020) | £1,130 | £1,130 | £737,218 | RE | 12 |
| 32 (35) |  | Judy (2019) | £745 | £1,603 | £8,283,449 | 66% | 21 |
| 33 (29) |  | Wonder Woman 1984 (2020) | £682 | £2,072 | £1,582,087 | -15% | 5 |
| 34 (re) |  | Dr. Strangelove Or: How I Learned to Stop Worrying and Love the Bomb (1964) Rerelease | £478 | £478 | £55,606 | RE | 8 |
| 35 (25) |  | Undergods (2021) | £347 | £926 | £2,777 | -76% | 2 |
| 36 (re) |  | The Lion King (2019) | £336 | £336 | £76,023,161 | RE | 36 |
| 37 (23) | Surge (2021) | £335 | £3,594 | £6,490 | -88% | 2 | |
| 38 (26) |  | Granada Nights (2021) | £54 | £654 | £1,928 | -96% | 2 |