WEEKEND BOX OFFICE: 'Monsters University' Repeats, Taking 'The Heat' and 'White House Down' to School

Raunchy buddy cop films and Roland Emmerich's latest assault on the White House since his 1996 film, Independence Day failed to put a dent into Pixar's continuing success of the final box office frame in June.

Pixar prequel, Monsters University topped the charts for the second week in a row with a $46 million weekend, more than half of its $82 million opening haul. With Despicable Me 2 and The Lone Ranger set for Wednesday release this holiday weekend, the family competition grows stiff.

Sandra Bullock and Melissa McCarthy's comedy The Heat opened in second with $40 million, coming up short of the top spot, but bolting past the frame's only other new wide release, White House Down. The Jamie Foxx action vehicle scored a decade low for Roland Emmerich outside of his 2011 film, Anonymous.

Brad Pitt's Zombie Apocalypse Stuck on Loop in 'World War Z'

Brad Pitt and his family attempt to survive the zombie apocalypse in World War Z. 

With AMC's The Walking Dead commanding the cable air waves and The Last of Us making its mark on the Playstation 3 several weeks ago, zombies definitely continue to be the trending facet of apocalyptic fiction in recent years.

Enter onto the summer blockbuster stage World War Z, based on the Max Brooks novel of the same name, which combines the star power of Brad Pitt with thousands of undead CGI co-stars. Pitt takes on the role of Gerry Lane, a former United Nations investigator sent back into the field after several zombie outbreaks occur around the world. Even with minimal information provided about the lead character, World War Z boils down into a non-stop battle between Pitt and zombies.