Hitchcock: Talking Points for 7/18

To Catch a Thief may be the most purely entertaining movie that Alfred Hitchcock ever made. Before coming to class think about these questions:
1) What is the difference between a work of art and a work of entertainment?
2) Is there, in fact, a difference?
3) If there is a difference, what films (not necessarily Hitchcock films) are examples of each kind?