Invisible Boy, The
Forbidden Planet featured a very expensive robot named Robby. After spending all of that money to build Robby, the studio felt that they out to get some more use out of him, and so this movie was made. There is a loose reference that Robby is the same robot from the earlier movie, but it really plays no part. Somehow Robby has gone back in time and becomes involved with a little boy who mysteriously gains super intelligence. Also there is a super computer who is trying to take over the world. What more could you want? The whole movie is included as a special feature on the anniversary edition of Forbidden Planet.