Their creepy crime thriller set at a remote insane asylum opened with $40.2 million. "Shutter Island" is the fourth collaboration for Scorsese and DiCaprio and the best opening yet for both the director and star.
The previous weekend's top movie, the all-star romance "Valentine's Day," slipped to No. 2 with $17.2 million. It raised its total to $87.4 million after 10 days in theaters.
The science-fiction sensation "Avatar" is still going strong after two months in theaters, coming in third with $16.1 million and raising its record domestic total to $687.8 million.