US box office topped by new Sandra Bullock film
According to early estimates, the film, which stars Sandra Bullock, took £30.4 million (£12.5 million) compared to New Moon's $15.7 million.
The Blind Side, which had occupied the second spot since its release two weeks ago, tells the story of a family who adopt a homeless teen who ends up playing professional American football.
New entry Brothers, starring Tobey Maguire, Natalie Portman and Jake Gyllenhall, took the third spot with $9.7 million.
Disney's A Christmas Carol moved back up the chart one place to four.
Old Dogs dropped one place to five, while Armored and 2012 tied in the sixth spot.
Ninja Assassin and Planet 51 took the eighth and ninth spots, after dropping one place each.
At number ten was new entry Everybody's Fine, which stars Robert De Niro as a pensioner who goes on a journey to seek out his grown-up children.