This was kind of unexpected. There was some speculation that Pirates of the Caribbean II: Dead Man's Chest would beat out M. Night Shamalyan's The Lady In The Water, but no one would have guessed that Lady would also fall to Monster House, a new animated feature about a scary house.
The worst part is that Lady only made $18 million in the opening weekend, which really sets it up for failure. In the meantime, Pirates has scooped up over $300 million, and it rapidly on its way to becoming Disney's highest grossing film of all time.
Box Office Mojo: Box Office Report