The Essence of the Harry Potter & Half-blood Prince book was truly captured and maintained in this movie adaptation. Also new was the wonderful sense of light - yes you could actually see the characters instead of them always being cast in shadows. Lots of humor interjected, some twists in presentation of information from the book and creative interpetation, but all in all a great job. A wonderful job of distilling a large volume of words and internal thought and conflict and producing a movie that shows the viewer what the reader can read. Truly in the English sense, Brilliant!adaptation and by far the funniest movie of the Harry Potter's. Literal die-hards may disagree but a GREAT CREATIVE MOVIE!