Scifi movie about a boy who dreams that the world is ending and when he wakes up the world is fine. There is a doctor that has a dream computer that gets bigger as the more the boy dreams. Eventually the computer is the size of a house. The doctor dies after he has a dream and the computer shows him the world has been destroyed and he goes insane.
Sounds crazy but it’s all my Dad remembers about this movie. Black & white movie.