When you think of Christmas movies, your mind might go first to classics like "It’s a Wonderful Life" or "Miracle on 34th Street."
Or you might think first of some more modern-day classics like "Home Alone." And if you’re the "Die Hard" type, Vaughn Joy has got you covered, too.
Joy is a researcher at University College London, where she’s writing her thesis on Christmas movies.
The Show spoke with her, and she said they have changed dramatically over the last several decades.
