It was early 1960's. I went to a movie theater with my mother and sister. We watched some sort of science fiction movie that was a real stinker, but there's no trace of it anywhere to be found on the internet. I'm posting it here to see if anyone else remembers it.
A small group of people (a family I think) makes a trip to another planet. They meet an advanced civilization living underground. This civilization is building robots. They explore the robot factory. The movie goes into a loop by warping back to when they meet the underground civilization and replays again leaving out much detail to make this loop shorter. When they hit the same spot it does it again, only it goes a little faster. It continues in this fashion until it ends up just being a fast blur on the screen, where the movie finally ends.
Everyone leaves the theater feeling cheated out of their money and their time.
