"Giant" by what Hogarth names him The Iron Giant was a 50-foot tall autonomous "Metal Man" from another world that crash lands on Earth before becoming friends with a young boy named Hogarth who rescues him from his own internal defensive mechanism in the Warner Bros. 1999 animated science fiction film of the same name, voiced by Vin Diesel. The Iron Giant is loosely based on the title character of The Iron Man, a 1968 novel by Ted Hughes. A 150-foot, metal-eating metal man with a pleasant, inqu