Elaine Hendrix did her own stunts, especially during the fighting scene against Claw's minions.
Two beagles were used for the role of Brain, Penny's dog.
Every extra was given glasses for the Science Convention scene.
Director Alex Zamm, his wife and baby son had a cameo in the Radio Pillow invention scene where Inspector Gadget is at the Science Convention.
Claw's hideout in an abandon Bowl-Rite factory was actually an old sugar factory in Australia.
The original concept for the Federal Reserve was a giant piggy bank.
The special effects crew used power drills for some of their stunts. For example, when Gadget first sees G2, his hat spins when a power drill connected to a pole to the hat spins.
Dr. Claw's face is never shown throughout the entire course of the film. This is a reference to a running gag from the original TV series