Brad Pitt stars in director Marc Forster's Post Apocalyptic Zombie thriller World War Z for Paramount which has just begun filming. Some images have already emerged online from the shoot which is taking place in Valletta, Malta. Pitt stars opposite Mireille Enos, James Badge Dale, Matthew Fox, Ed Harris & Julia Levy-Boeken. The movie is based on Max Brooks' best-selling novel about a worldwide infestation of flesh-eating zombies. Hit the jump to check out the images.