Trivia

The beginning and end of the movie were shot on the same, intact, set. Throughout the movie the set was damaged and destroyed forcing the film to be shot in sequence except for the beginning and the end.

Jonah Bobo lost 4 teeth during filming, so the filmmakers made him fake teeth.

Kristen Stewart admitted she was disturbed to see the life-size replica made of her for the scenes where Lisa is frozen. Not long after, several men reportedly offered to buy the replica, which creeped her out even more when she found out.

Filmed in the same house that would later be used in Disturbia (2007).

Kristen Stewart is only two years older than Josh Hutcherson.