WEEKEND BOX OFFICE: 'Monsters University' and 'World War Z' Scare Superman Reboot Off Top Spot

The summer box office season might have started last month with $400 million blockbuster Iron Man 3, but with both Monsters University and World War Z opening north of $65 million, the first official weekend of summer 2013 ranks as the 8th largest weekend ever.

Pixar can rest easy now that their 14th feature, Monsters University cleared $80 million, a near-impossible feat that's only been broken once before by the animation studio. After a strong $30 million opening day, Monsters University already finds itself off to a more impressive start than Pixar's previous two films, Cars 2 and Brave.

Brad Pitt's zombie apocalyptic film, World War Z also opened higher than expected with $66 million. With Monsters University and World War Z taking the top two spots, last week's superhero champion, Man of Steel dropped to a third place finish.

WEEKEND BOX OFFICE: 'Man of Steel' Overpowers Competition Over Father's Day Weekend

Superman blasted through the box office this Father's Day weekend like a speeding bullet with no signs of stopping anytime soon. Zack Snyder's Superman reboot, Man of Steel, broke the June record opening up to $129 million. ($12 million came from Walmart exclusive showings the night before).

Already one of the highest grossing films of 2013, Man of Steel is already looking ahead at the inevitable sequel. While critics were mixed on Man of Steel, audiences are warming up to this reboot more than 2006's Superman Returns. 

Though Superman overshadowed every other title over the weekend, Seth Rogen's comedy This is the End managed to debut in second place with $21 million over its 3-day run and $33 million over 5 days.