Paramount Pictures' World War Z opened with $66M domestically and $111.8M worldwide this weekend, marking Brad Pitt's highest box office debut to date. This is an impressive feat for the $190M zombie thriller, many thought would be one of the biggest box office failures of the year. Last year, the movie's final act was heavily reconstructed, with a couple of writers hired and the film undergoing several weeks of reshoots. This pushed its original release date from December 2012 to June 2013, and it also shelved plans to develop a trilogy based on the successful novel. But with both critics and audiences enjoying the film, Paramount "will now actively turn to developing a sequel", according to The Hollywood Reporter. Director Marc Forster expressed interest in returning recently, as did Pitt. If the film continues to be a box office success, then we may end up seeing a World War Z trilogy.