Titanic
Titanic is one of the most famous movies of all time. Featuring Leonardo DiCaprio and Kate Winslet, the story follows two star-crossed lovers as they take the infamous voyage over the Atlantic. In one scene, Jack (DiCaprio) mentions that he loved fishing with his father on Lake Wissota in Wisconsin. This is an overall weird thing to mention since Lake Wissota was formed five years after the sinking of the Titanic, so it wouldn't have been historically accurate for Jack to mention.