Half Blood Prince was an excellent movie. I am an avid Harry Potter fan, i have read all the books and seen all movies this far. True the movie does not follow the book 100% (your never going to be able to please every fan with a movie adaptation). Lot's of humor and insight into the characters. It certainly was full of teenage hormones running rampant every scene seemed to have kids making out in dark corners... Those of you who have read the book know what happens at the end so i won't say it here but keep those kleenex handy.