‘World War Z’ Trailer: Brad Pitt Battles Zombies, Protects His Family‘World War Z’ Trailer: Brad Pitt Battles Zombies, Protects His FamilyAfter going through an arduous shooting process, Marc Forster's 'World War Z' now has a trailer, which features Brad Pitt and his family up against the zombie apocalypse.Damon HouxDamon Houx