Revealing mistake: When Jacquouille takes the jewels from the dead man, his hands move.
Revealing mistake: When Godefroy first wakes up in the forest, you can see a branch on the ground next to him move where the cameraman treads on it.
Les Visiteurs (1993)
2 revealing mistakes
Directed by: Jean-Marie Poiré
Starring: Jean Reno, Christian Clavier, Marie-Anne Chazel
Revealing mistake: When Jacquouille takes the jewels from the dead man, his hands move.
Question: How could Godefroy have descendants living in the present day if when he left his time Frenegonde, the woman he loved, refused to marry him because of her father's death?
Answer: If you saw the movie he returns to the past just in time to stop the crossbow from killing her father. They married and lived happily ever after.