| pos. | Title | Gross | |
|---|---|---|---|
| 1 |  | Avengers: Infinity War (2018) | £70,804,892 |
| 2 |  | Mamma Mia! Here We Go Again (2018) | £65,588,324 |
| 3 |  | Incredibles 2 (2018) | £55,924,175 |
| 4 |  | Black Panther (2018) | £50,379,585 |
| 5 |  | Bohemian Rhapsody (2018) | £47,178,811 |
| 6 |  | The Greatest Showman (2017) | £41,746,231 |
| 7 |  | Jurassic World: Fallen Kingdom (2018) | £41,601,773 |
| 8 |  | Peter Rabbit (2018) | £41,074,970 |
| 9 |  | Fantastic Beasts: The Crimes of Grindelwald (2018) | £32,661,577 |
| 10 |  | Deadpool 2 (2018) | £32,501,893 |
| 11 |  | A Star Is Born (2018) | £28,988,665 |
| 12 |  | The Grinch (2018) | £26,624,487 |
| 13 |  | Mission:Impossible - Fallout (2018) | £24,414,691 |
| 14 |  | Darkest Hour (2018) | £24,112,875 |
| 15 |  | Mary Poppins Returns (2018) | £23,243,909 |
| 16 |  | Venom (2018) | £20,123,186 |
| 17 |  | Jumanji: Welcome to the Jungle (2017) | £20,086,082 |
| 18 |  | Hotel Transylvania 3: Summer Vacation (2018) | £19,717,237 |
| 19 |  | Solo: A Star Wars Story (2018) | £19,433,465 |
| 20 |  | Coco (2018) | £18,013,336 |