True, I never really understood why the book was titled "Half Blood Prince" when that theme is so minor, but the movie did have a warm tone that drew me into this world once again. It was a few hours of enthralling escapism and the kids did a pretty good job with the acting, so you have to appreciate the producers' foresight nearly ten years ago when the series was cast. It left me wanting much more, but not in an unfulfilled way- it might've been intended to generate interest in two more movies instead of just one.