This film image released by Warner Bros. Pictures shows the character Cook in a scene from "Jack the Giant Slayer." Jim Vieira is on the hunt for real giants. (AP Photo/Warner Bros. Pictures)
He may not have climbed any beanstalks, but Jim Vieira is hard at work attempting to track down giants. He believes that there may, at some point, have been a race of people who were more than seven feet tall, perhaps had two rows of teeth, and lived in America.