That's because, as director David Yates points out, it's the "sex, drugs, and rock and roll" of the Potter books, with massive making-out sessions to occur for several characters — Ron and Lavender, Harry and Ginny — as they come of age. "It's the 'American Graffiti' for this set," Yates said. "I'm looking forward to developing the relationship between Ron and Hermione, and Ron and Lavender. There's a nice triangle there."