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Its the third movie based on the lego franchise and each one has made its debut at the top, but The Lego Ninjago Movie has done so with the lowest opening.
With £3.6 million there is the feeling that the general public are starting to get used to seeing the Lego franchise on the big screen and are maybe waiting for home video before watching.
Regardless this is still a number one film and with a sequel to the original Lego Movie coming soon you can imagine that being a box office hit as well.
Blade Runner 2049 falls from the top to number 2 this week, but with a £3 million weekend it fought hard to stay on top.
The full week gross was £6.1 million so it easily was the top film of the week, the total gross currently sits at £12.1 million.
Also new this week is The Snowman at number 3 with a weekend gross of £1.3 million and Botoks is new at 5 with nearly £0.8 million.
The Ritual is new at number 7 with and the highly acclaimed movie Loving Vincent is new at number 9, Sally Potter just creeps into the top 10 at 10 as The Party makes its debut.
Despicable Me 3 has now been on the box office for 16 weeks and has a total gross of £47 million.
A year ago
The Girl on the Train stays at the top of the box office for a second weekend while Inferno starring Tom hanks and directed by Ron Howard is the top new film at 2.
Five years ago
Liam Neeson and Taken 2 hold onto the top spot for a second weekend while the top new film was Hotel Transylvania at number 2.
Ten years ago
Pixars Ratatouille was the top new film of the weekend at number 1 while The Heartbreak Kid fell from the top to number 3 after just 1 weekend.
Fifteen years ago
The last of the Hannibal Lecter films starring Anthony Hopkins made its debut at the top of the UK box office while Disney's Lilo and Stitch fell to number 2 after a week on top.
Twenty years ago
Disney's Hercules made its debut at the top of the box office knocking The Full Monty down to number 2 after 6 weeks at the top.
Twenty five years ago
The original animated version of Disney's Beauty and The Beast made its debut at the top while Patriot Games fell to number 3 after a couple of weeks at the top.