Fans of Max Brooks’s World War Z: An Oral History of the Zombie War have been up in arms since Paramount Pictures issued a press release for their upcoming film adaption of the novel. The synopsis included in the release seems to dictate that the movie will be quite different from the book. Marc Forster, director of Paramount’s World War Z, addressed the movie’s changes in a recent conversation with MTV. In the interview, Forster says they are “trying to still include as much as we can from the book,” but admits that there are differences from the novel. One change he acknowledges is the characteristics of the zombies. In the novel the zombies are classic, slow-walking corpses, but the zombies in the movie will have a “different approach” says Forster. Check out the entire interview at MTV.com. World War Z is scheduled for release on December 21, 2012.