Having read it, I can safely say that if you enjoy reading screenplays to see how much the movie changed from page to screen, that this would be a good one to read. Unfortunately, the book has a very slipshod feel to it, from an uninspired cover design to far too many typographical errors, inconsistent formatting and what appear to be twenty some pages of repeated text towards the end of the book. This last is not a misbound signature, as the pages are numbered consistently throughout. Rather it looks as though someone accidentally pasted a large portion of the manuscript in just before printing.
All in all, I found the content of the book to be fascinating, but the actual presentation of it to be mediocre at best. I would love to find out that I have a bad copy but somehow I doubt that this is the case.