The Corruptibles!, a DRM-animation by the EFF:

Hollywood wants Congress to give it new super powers over your TV, radio, and computer. Find out more in this animation, and write to stop the Broadcast Flag, Audio Flag, and Analog Hole laws.

Available in various formats, including in OGG Theora (9.8MB) by the Xiph.Org Foundation.

Excellent movie about "Trusted Computing" by Lafkon.net. The movie can be downloaded here.