Audio problem: When the Big Bad Wolf is blasted through the wall a second time, we cut back to Bugs who says "I don't see why anybody thinks these club initiations are dangerous." When he says it, the audio is a few frames behind his mouth.
Continuity mistake: When Peter Fonda is hanging from a cliff with both hands over a waterfall, he is wearing his glasses. There is a cut to a shot of him not wearing glasses. When the movie cuts back to him shortly afterwards, he is wearing his glasses again. (00:32:10)
Factual error: The radio Walter uses on the island has no apparent power source; we never see either batteries or a hand-cranked generator.
Other mistake: There were no gorgons named Megara. The three that existed were Medusa, Euryale, and Stheno.
Continuity mistake: When we see a close-up of the meter, there is a box saying "10 Centavos for One Hour." The words were not in the box in the previous shot.
Continuity mistake: When the clerk looks in close-up at the bank cheque written in disappearing ink by Fantomas, the background has nothing to do with the desk, and the distance is all wrong as well. (00:03:10)
Continuity mistake: When Bruno goes to the Captain, to ask for leave so he can go to his daughter's funeral, he places his cap on the desk in front of him. It slips to the floor, but a minute later his cap is magically back on the desk.
Continuity mistake: When the protagonist of the first episode is shown, he's on the phone talking to his lover, alone in the middle of a room. The cable of his phone though comes always from the same direction even when supposedly he is in different, opposite, spots inside the same room. (00:02:50)
Continuity mistake: When Daffy is clawed by the bear, he loses his hat in the process. But when we Daffy running in the next shot, the hat is back on his head again.