Valve recently dropped the source film maker on folks and I have been trolling teh intarnet swarm-fest for interesting videos created with it. The above video isn't Source Film Maker creation, but its an awesome mashup of Team Fortress 2 and The Dictator.

That said here are a couple videos I found interesting or amusing:

http://www.youtube.com/watch?v=kXEnIfSrnFo [ Batman? ]
http://www.youtube.com/watch?feature=player_embedded&v=1YrrAroK6bI [ Save as .dmx ]
http://www.youtube.com/watch?v=xIZQpwCOCaQ&feature=player_embedded [ Shit just got Real ]