Thank you very much for your detailed post. I see now what you meant, and yes, I have seen and love the movie. I will pick the book up and give it a read, which I wouldn't have done if you hadn't replied with this (actually, I didn't even know there was a book)!

It sounds very intriguing, the way it is presented. It must be great to read it thinking there actually was another book, but I think I'll enjoy it nonetheless!