The comedy starring Ryan Reynolds and Samuel L. Jackson took £1.9 million on its debut weekend to reach the top, this is the lowest opening for a film to reach number 1 since Billy Elliot The Musical Live took the top spot in September 2014.
This means that the total gross for the top 15 films is also at a low with just £10 million taken.
Falling from the top is Dunkirk, although it held on tight and in the end lost to by a narrow margin taking to second place with £1.8 million.
Dunkirk is still showing strong figures from the week and took £4 million Monday - Sunday to brings its total to nearly £50 million, it is easily the second top grossing film of 2017.
Interestingly the Monday - Sunday figures puts The Hitmans Bodyguard at number 4 with Annabelle Creation and The Emoji Movie coming second and third.
Highest grossing film on the UK box office this week is Dunkirk while the longest running film is Despicable Me 3 with 8 weeks on the chart, its currently number 6.
Historical charts
A year ago - Finding Dory Went back to the top of the box office knocking Suicide Squad to number 2 while David Brent Life On The Road was the top new film at 3.
Five years ago - After a limited launch seeing it reach number 6 then number 5 Brave reached the top when it went wide on its third week, it knocked off Ted to number 3, The Bourne Legacy was the top new film at 2.
Ten years ago - The Bourne Ultimatum was the top new film of the week at number 1, it knocked off Rush Hour 3 to number 3.
Fifteen years ago - Men In Black II remained at the top of the box office for a third weekend while the top new film was The Sum of All Fears at number 2.
Twenty years ago - Men in Black remained at the top for a third weekend while the top new film was Speed 2 Cruise Control at number 3.
Twenty five years ago - Lethal Weapon 4 was the top new film of the week making its debut at the top while Far And Away fell to number 2.
