Director David Yates: "In The Half-Blood Prince, Harry and Dumbledore go on this journey together."
Yates has previously explained his plan for the film's shift in tone. "It's actually about sex, potions and rock 'n' roll. ...
"It's a wonderfully fun, slightly rebellious, quite naughty stage of teenage life. When you're kind of discovering the opposite sex. ... In the previous film, it was about the first kiss. This film is a bit more sexualized than that.
"You know, in a way. We don't see sex, but it's kind of in there. And the relationships are a bit more complicated and romantic and convoluted."