Just Visiting(2001)

A treacherous rival poisons Thibault’s wine.  Thibault seeks help from an incompetent wizard, and is accidentally sent 800 years into the future, along with his servant Andre.  He wakes up in his bed, which is now in a museum in Chicago. The curator of the medieval exhibit is his great, great….great grand daughter, Julia (also Christian Applegate).  Julia takes Thibault and Andre home with her.  Julia is about to sell the old family estate in Europe, due to pressure from her boyfriend Hunter.  Hunter is a low life jerk, having an affair with another woman.  He is just with Julia to get as much money as he can from the sale of the estate.

The wizard follows them into the present age.  Thibault and Andre have numerous misadventures due to not understanding modern customs and technology.  Andre protects the girls next door from an abusive boss, and she falls for him.  The wizard finds them and mixes a potion that will send them back.  Andre does not want to go back to being a poor peasant.  He wants to stay with the girl next door.  Andre and the girl catch Hunter with his girlfriend, exposing him Julia.  Julia dumps Hunter.

Thibault goes back in time.  He kills his treacherous rival and marries Rosalind.  Hunter inadvertently drinks the leftover potion and also goes back to 1200.  He is sent to be a lowly servant.  Julia decides to go live in the ancestral estate in Europe.  The final scene is Andre and the girl next door getting married in Vegas.