On the subject of capitalism, politics, power and liberty I recommend watching the documentary series "The Trap" by Adam Curtis:

[1/3] http://www.youtube.com/watch?v=gZt2HhFXB3M

[2/3] https://www.youtube.com/watch?v=WbRApO3k_Jo

[3/3] https://www.youtube.com/watch?v=LFjCJFsbS0U

Another series by Curtis, "The Century of the Self", explores similar themes in the context of psychology (Freud and Reich), propaganda (Bernays), and the rise of market-based democracy:

[*/4] http://vimeo.com/61857758