£5.6 million is enough to keep it at the top of the tree which brings its total UK gross to £25 million after 10 days in cinemas.
Repeating last weeks top 2 Alving and the Chipmunks The Road Chip hangs on in the runner up spot for a second week.
Highest new film of the week is the female let comedy How To Be Single staring Dakota Johnson and Rebel Wilson.
The valentines day/date movie has an appeal for men but has a strong female appeal in direct competition to Deadpool, although that film does have a strong female appeal.
How To Be Single makes 3rd place on its debut with a fairly solid £1.8 million, although no-where near either leads last film of Fifty Shades of Grey and Pitch Perfect 2.
The only other new film on the top 10 is Triple 9 at number 6.
Highest total grossing film on the box office is still Star Wars: The Force Awakens which is at number 9 this week and has now taken £122 million.
Historical charts
A Year Ago - Fifty Shades of Grey held onto the top of the box office for a second week and with little strong competition The Wedding Ringer was the highest new film at 5.
Five years ago - Simon Pegg and Nick Frost starred in their self penned Paul which entered at number 1 knocking Gnomeo and Juliet down to 2.
Ten years ago - Chicken Little held on for another week at the top of the chart with Heath Ledger starring in Casanova the highest new film at number 5.
Fifteen years ago - Ridley Scott directed Hannibal which entered the box office at the top knocking Mel Gibson in What Women Want into second place.
Twenty years ago - Smash hot Jumanji entered the box office at the top of the chart knocking Heat down to second place.
Twenty Five Years ago - Dances With Wolves was still riding at the top of the box office after major Oscar success and Men At Work entered the chart at number 5.
