Also, check out this free flick called Zeitgeist: Addendum. Forewarning: It's very long and starts out with some lengthy speech that you can skip if you are easily distracted. If you associate yourself with any alternative political group, and you have an afternoon to yourself then check it out. It certainly gives an interesting perspective. For me, it didn't so much tell me anything I didn't know, it just gave me a new way to look at government, life, etc.
http://www.zeitgeistmovie.com/