Continuity mistake: When Jacquouille gets frightened by the television set, he throws a statue in it, making the TV set explode. The blankets placed over the couches as well as various objects are sucked into the set. In the next shot, the couch right in front of the TV is still covered by its blanket, which disappears in the following shot.
Continuity mistake: When he wakes up in the present time, Godefroy has nothing on his head, but when he wakes up Jacquouille, he's got a helmet.
Visible crew/equipment: When Jacquouille is trying to drive the police truck, it's obviously a stunt driver in some shots because he wears a t-shirt.
Continuity mistake: When the old couple is driving Jacquouille and Godefroy, the window of the driver's side keeps changing from closed to opened.
Continuity mistake: After Jacquouille arrives at Béatrice's house, she talks to him about Jacquard. Her hair band keeps disappearing.
Continuity mistake: When Lady Ginette finds the cigar box containing the jewels in the freezer, there's two round gold things on it. The shot later, one of the object is smaller. Ice also appears on the box.
Continuity mistake: When Jacquard shows his feet in the hospital, there's a doctor besides him but he disappears each time there's a view from the corridor where Béatrice and Jacquouille are.
Visible crew/equipment: When Béatrice asks to Ferdinand Eusebe to prepare the potion, there's a shot behind a desk. The shadow of the crew is visible on the books.
Continuity mistake: When Lady Ginette's car is parked in front of a supermarket there are white lines on the ground, but when she escapes with Jacquouille, the lines are gone.
Visible crew/equipment: At the wedding, the crew is visible on Jean-Pierre's car when Jacquouille puts the fish on it.
Continuity mistake: In the Middle-Age, when a Burgundian pushes Jacquouille into a barrel of beer. There's a dead animal and a garlic branch besides it, but it is closer in the next shot.
Continuity mistake: In the Middle-Age, when Jacquard is escaping from the wolves, he is on the edge of a hill but when the bear attacks him, he is on a flat ground.
Continuity mistake: When Jacquouille throws the television set in the pool, the toys are shaking. In the next shot, the are only shaking a little bit and they shake a lot after that.
Revealing mistake: In the opening credits, there's a shot of the first film where Jacquouille takes the jewels of the dead Duke. The "dead" man moves.
Continuity mistake: After Béatrice presents the television to Lady Ginette, she puts the remote control on the couch twice.
Continuity mistake: When Lady Ginette is trying to sell the jewels to the auctioneer, he has them and a magnifying glass in his hand then it's on the table and back his hands in the next shot.
Revealing mistake: When the old couple finally escapes from Godefroy and Jacquouille, you can tell by the way the woman shakes that it's a dummy.
Continuity mistake: When Jacqard is urinating in the broom closet, sometimes he holds his torture clothes and sometimes they're down to his ankles.
Visible crew/equipment: At the wedding, there's a reflection of the crew on Jean-Pierre's car when Béatrice says to Jacquouille and Lady Ginette to shut up and sit in the car.
Visible crew/equipment: When Lady Ginette goes outside the house with the jewels and Béatrice and Jacquouille runs after her, there's a shot where the microphone is visible at the top of the screen.
