UK Box Office 18th December, 2020
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (new) |  | Wonder Woman 1984 (2020) | £846,435 | £846,435 | £846,435 | new | 1 |
| 2 (1) |  | Elf (2003) Rerelease | £83,623 | £83,623 | £232,100 | -15% | 16 |
| 3 (2) |  | Home Alone (1990) Rerelease | £56,261 | £56,261 | £183,653 | -36% | 31 |
| 4 (new) |  | Come Away (2020) | £42,834 | £42,834 | £42,834 | new | 1 |
| 5 (5) |  | LoveActually (2003) Rerelease | £20,430 | £20,430 | £77,589 | -52% | 18 |
| 6 (4) |  | Superintelligence (2020) | £19,389 | £47,699 | £120,273 | -73% | 2 |
| 7 (new) |  | It's a Wonderful Life (1946) Rerelease | £17,181 | £17,181 | £17,181 | RE | 17 |
| 8 (19) |  | The Muppet Christmas Carol (1992) Rerelease | £16,985 | £16,985 | £2,709,366 | 14% | 16 |
| 9 (7) |  | The Polar Express (2004) Rerelease | £15,298 | £15,298 | £43,648 | -46% | 12 |
| 10 (10) |  | A Christmas Carol (2020) | £14,867 | £28,643 | £84,069 | -42% | 3 |
| 11 (8) |  | Two By Two: Overboard! (2020) | £14,767 | £19,599 | £1,071,693 | -46% | 9 |
| 12 (12) |  | Die Hard (1988) 30th Anniversary | £14,713 | £30,201 | £384,735 | -36% | 14 |
| 13 (new) | The Nutcracker: Bolshoi Ballet 2020 (2020) | £13,820 | £13,820 | £13,820 | new | 1 | |
| 14 (21) |  | Arthur Christmas (2011) Rerelease | £13,310 | £12,598 | £26,805 | -1% | 26 |
| 15 (new) |  | Let Him Go (2020) | £12,907 | £12,907 | £12,907 | new | 1 |