A short commentary: Having read through a few of the comments here, I note that there are several which express disappointment that the movie didn't do the book justice. Personally, having read the book some time after seeing the movie, I can understand their point, but realistically it's the type of book which would be nearly be impossible to do justice to, as there are so many broad interwoven threads in the book that it would require at least a 6 hour movie to even scratch the surface, and even then, putting it all together into a singular coherent whole which would hold the viewer's interest for that long would be quite a mean feat indeed. So instead of looking at it as an attempt to fully capture the book, it might be best to simply appreciate it for what it is, rather than what it isn't. And I believe that on its own terms it succeeds admirably, and remains one of my favorite movies of all time.

Another way of looking at this, as an introduction to the book, rather than vice versa it has some value on those terms. Perhaps if I hadn't seen the movie I might never have happened upon the book, and never known what I'd missed.