The Economist Film Project - http://film.economist.com/
Free online videos "...the project will feature films whose new ideas, perspectives, and insights not only help make sense of world events, but also take a stand and provoke debate."
Films on Demand - http://www.galileo.usg.edu/express?link=zfod
You must be on the campus network or have the GALILEO database password to watch the films. This database contains over 7,000 educational films and newsreels.
PBS Video - http://video.pbs.org/