Continuity mistake: At the end of Part 1, Sir Norman enters the rejuvenation device and immediately gets younger. As Part 2 begins, however, he emerges from the machine looking the same, and Dr. Gritsky says that his rejuvenation will occur gradually over the next few days.
Factual error: While Solo prepares the explosive, Waverly's line to Joanna is, "If you and I are wise like Lot's wife, we'd better not look." The scriptwriter got this backwards. Lot's wife was unwise and did look, and turned into a pillar of salt.