'The Perks of Being a Wallflower' has to be many things to many people. For fans of the acclaimed novel, it has to live up to the images they cooked up in their head. For Summit, it has to prove that they can deliver films that don't have 'Twilight' in the title. For Emma Watson, it has to give her career life beyond the 'Harry Potter' franchise. For Ezra Miller, it has to prove to audiences that he can play roles beyond bow wielding psychopaths named Kevin. The film isn't out until September, but we can start here with a new poster and clip.