It was a very good documentary. I saw it last year. The one point of his I had a big problem with was "reason will not save us." And then he goes on to describe Castro and Krushev (I know I didn't spell that correctly) as reasonable men. Yeah, right...
Reason could save us. The only problem is that only a small minority of people on this planet are truly rational.
Other documentaries you should check out are "Why We Fight," "Zeitgeist," and "America: Freedom to Fascism."