According to recent news from Vulture, Ed Harris and Matthew Fox will not be joining Paramount’s World War Z. The actors dropped out due to scheduling conflicts. The film–based on Max Brooks’s novel, World War Z: An Oral History of the Zombie War–has already begun filming in Malta with Brad Pitt. ET Online has the first footage of zombies on the set–a scene involving zombies falling from the sky. Watch the video here. World War Z is vying for a 2012 theatrical release. The zombie film is being directed by Marc Forster.