This past weekend saw the biggest opening ever for Leonardo DiCaprio and Martin Scorsese as Shutter Island led the pack. Here's the top five:

1. Shutter Island: $41 million
2. Valentine's Day: $16.6 million
3. Avatar: $16.2 million
4. Percy Jackson & the Olympians: The Lightning Thief $15.2 million
5. The Wolfman: $9.9 million

We've got two new releases this week, dividing the box office between humor and horror.

Cop Out
What's It All About: In this comedy Bruce Willis plays a veteran police detective whose valuable baseball card is stolen. Since the card is the only way he can pay for his daughter's wedding, he and his partner (played by Tracy Morgan) must track it down.
Why It Might Do Well: Director Kevin Smith's movies have made me laugh more often than not.
Why It Might Not Do Well: This is Smith's first film that he hasn't scripted himself. Will the magic still shine through?
Number of Theaters: 3,100
Prediction: $23 million

The Crazies
What's It All About: In this remake of a George A. Romero film from 1973, a small town experiences terror when one by one its residents are gripped a sudden murderous insanity.
Why It Might Do Well: While not technically a zombie movie, this looks more like one that the original, and between recent vampire and werewolf flicks the zombies need to be represented.
Why It Might Not Do Well: Horror remakes have had a less than awesome track record.
Number of Theaters: 2,400
Prediction: $14 million