 In its opening weekend, "Iron Man" grossed $98.6 million in 4,105 theaters in the United States and Canada, ranking first at the box office, giving it the eleventh biggest-opening weekend at the time, ninth-widest release in terms of theaters, and the third highest-grossing opening weekend of 2008 behind "Indiana Jones and the Kingdom of the Crystal Skull" and "The Dark Knight".It grossed $35.2 million on its first day, giving it the thirteenth biggest-opening day at the time.