One of the dangers of assigning a book that has been turned into a movie is that students will think they can watch the movie instead of doing the reading.
One of the pleasures of assigning a book that has been turned into a movie is asking students questions about characters and events that did not happen in the book and then letting them know that I was not, in fact, born yesterday.*
*The pleasure gained from this experience is just enough to make me overlook the fact that it runs counter to my preferred way of dealing with problems.
Memoirs of a SLACer 