"Monsters Vs. Aliens" opens the weekend box office at no.1 with $58.2 million

The battle of Monsters Vs. Aliens has invaded the weekend box office by capturing the top spot with $58.2 million

This DreamWorks Animation is the biggest debut in 2009, beating the $55.2 million first weekend of "Watchmen" in early March.

1. Monsters vs. Aliens - $58.2 million
*$58,200,000
2. The Haunting in Connecticut - $23 million
*$23,010,000
3. Knowing - $14.7 million
*$46,220,000
4. I Love You, Man - $12.6 million
*$37,007,000
5. Duplicity - $7.6 million
*$25,639,000

* indicates total box office take since opening.
Full list of Box Office Totals after the jump.

Full list of Box Office Totals