Box Office Report: 'White House Down' Flops; 'The Heat' Soars With $40 Million Opening

Roland Emmerich's big-budget action tentpole opens at No. 4 with $25.7 million, despite starring Channing Tatum and Jamie Foxx; "Monsters University" stays at No. 1 in its second weekend with $46.2 million to cross the $300 million mark worldwide.