I went to see this film with my anime and Diana Wynne Jones-loving teenage daughter. And while I enjoyed the film immensely due to its excellent animation, story and overall sense of fun, it was also interesting to see how much my daughter hated it! It was as if we saw two entirely different films. Why? Well, she is a huge Diana Wynne Jones fan and has read and re-read just about everything she ever wrote. And, according to her, the story was so different and so inferior to the book that she disliked the film and said some very nasty things about director Miyazaki. However, my advice is DON'T read the book and just go and see the movie. Then, after enjoying it, read the book ONLY if you are 100% sure you can do this without freaking out because they are so different!! I didn't know the difference and had a great time seeing the film!