Revealing mistake: At the party where Inspector Gadget lights a cigar for Scolex, he uses his thumb which flips open to reveal a flame. When they cut to the close-up of Scolex getting the cigar lit, you can see that there is a hand holding up a traditional lighter, and not Inspector Gadget's thumb any more.
Trivia: I wouldn't want to stay at the hospital that Gadget was staying at. When Penny runs into the room with the man in the body cast, someone on the intercom is saying 'Paging Dr. Howard, Dr. Fine, Dr. Howard. Paging Dr. Howard, Dr. Fine, Dr. Howard.' The Three Stooges were Curly Howard, Larry Fine and Moe Howard.
Question: When Inspector Gadget is lying on the table with the Claw watching over him, Gadget says that Claw will never get away with this. Then Claw says, "I think someone's been watching too many Saturday morning cartoons", and then everyone looks up at the camera confused/surprised. Can any one explain what the joke is here?