Movie: The Perks of Being a Wallflower

Emma Watson on the set of "The Perks of Being a Wallflower"

So tell me, is it weird seeing our beloved Harry Potter actors in other movies? Do you just keep thinking, "Hermoine!" when you watch trailers for the upcoming "The Perks of Being a Wallflower"? Well, I do.. Though I am excited to watch the movie. Have any of you read the book?