Every have a movie trailer get you to pick up the book? That's happened to me with The Giver. I don't know what it is about Jeff Bridges. I watched a bit of an interview with him, talking about looking for something, and coming across The Giver. In the trailers I watched the lead character running with a baby, trying to save the child and it got to me. So now I'm immersed in Lois Lowry's story. Why was he running with the baby? After reading about half the book now, I have a feeling I know why he's running with the baby. I hope they get away. I suppose I'll know soon enough.
So, a good movie trailer can do two things, get you to buy the book and watch the movie.