Other mistake: Subtitle (English) appears to be incorrect: "He is setting the scions of criminal investigations back 1000 years" should be "He is setting the science of criminal investigations back 1000 years." "Scions" is a description of the branches of a tree. (01:11:00)
Continuity mistake: Near the end, Charlie, badly wounded and after killing Jack and Sheila, staggers from the house. As he stumbles towards his car, there is a gated driveway with a car parked in it. A few seconds later, the car is no longer there. (01:33:45)
Continuity mistake: When Sammy Davis Jr. is shooting up the casino, the glass rectangles for the lights on either side of all the wine bottles have machine gun bullet holes in all of them before he shoots.
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)