Although it couldn't meet the fevered expectations that it would open larger than its 2012 predecessor, Marvel's Avengers: Age of Ultron enjoyed the second-biggest opening of all time at the domestic box office this weekend. Marvel's The Avengers still holds the record with a $207.4 million bow, followed by Age of Ultron with an estimated $187.7 million. Avengers 2 outperformed Iron Man 3's opening ($174.1 million) to bump that to third place on the list of the biggest opening weekends of all time at the North American box office.