A movie directed by Brad Bird about a very tall alien from space made out of iron who befriends a young boy during the Cold War. I believe it is set around 1957ish.
The Iron Giant is a freaking huge bad ass and he came from outer space but he doesn't remember anything. He is loaded with buttloads of hardware and weaponry and he could enslave the world or destroy it if he had the will but he is very gentle and innocent. He is a walking tank that's as tall as a tall building!! He befriends this little kid but the movie would be better if the giant just squashed the kid and blew up New York or something cool like that...