Continuity mistake: In the helicopter evacuation scene, Fred Berry hangs on to the skid, then Sandy Duncan climbs down and clings to his back. Berry lets go and they land in Jake's airplane cockpit, and suddenly she's in his lap. I have no idea how Duncan managed to maneuver herself in front of Berry during the drop, especially in such a short distance.
Factual error: Jake takes a huge piece of gold and condenses it down into a small strip. It is then lifted with no difficulty. For the science of the film to work, this would have to be done without losing any of the gold's mass, or they could just get a small piece. As of such, the condensed gold would be just as heavy, if not heavier than in its original form.Quantom X