Ray Harryhausen. It's a name that a lot of people should know, even though in reality these days it's more than likely that less know it than they should. If your old enough, you grew up on his movies, wondering how such creatures could possibly be brought to life - films such as Jason and the Argonauts, Clash of the Titans (the original one), and this one. He was a a special effects master when it came to claymation, and (to my knowledge), this is one of the first movies that he tried a new technique and also got to work with childhood friend Ray Bradbury. Giant monster from back in the days of black and white? Right up my alley, but what about you?