IF you like the movie this book could almost be considered a must read. That is, of course, if you are interested in background information.
Subtitled "Sam Peckinpah, a Revolution in Hollywood, and the MAKING of a LEGENDARY FILM", it is about all kinds of things that had to come together to make this film which really did change Hollywood. It's about a lot of aspects of the making, many of the problems encountered, and the nuts and bolts of the whole thing. There is information about the settings, the actors, the problems they had and so on.
This is a fun book to read if you're a fan of the movie or have any interest in how filmmaking happens.