The Law of Mushing Crap Together on The Internet: when you chop up the corpse of one horribly stupid movie and smash it together with the guts of another stupidly horrible movie, you end up with something kinda funny: Snakes on United 93.
Trailer is at:
http://www.youtube.com/watch?v=DPM5yWb4DMw&search=snakes%20on%20united%2093
Boing Boing piece is at:
http://www.boingboing.net/2006/04/22/video_snakes_on_unit.html