The Half-Blood Prince was an excellent movie, even though it didn't follow the book like the other movies did. The battle scene at the end was missing all together, which was disappointing, but I imagine the movie would have been 3 1/2 hours if they had included everything in the book. All in all, the movie was a great rendition of JK Rowling's book, and was full of action and comic relief as well. Definitely would recommend this movie.