Don't Lose Your Head.

For no particular reason, only because I like it, here is Land of the Heads from the NFB.

Doh, there was a video here. It has been expunged. You can watch a trailer here: http://www.nfb.ca/film/land_of_the_heads/trailer/land_of_the_heads_trailer/ (Sorry, bad link. Cut and paste it...)