Other mistake: The wizard Eusaebius is searching a slug powder to make the potion. When he finds it, it's a liquid.
Other mistake: When Jacquard is running to extinguish the fire on the Range Rover caused by the rings, he goes in the wrong direction.
Other mistake: Godefroy's shield and cape don't have the same coat of arms.
Other mistake: When Jacquouille puts the jewels in the statue,he unscrew the "hat" of this statue,but,in the next shot,if you look into the head statue,there isn't a thread for the screw.
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.