Funny Top 10 list of sci fi comedy movies -- Buckaroo Banzai, Galaxy Quest, Hitchhiker's Guide, Ice Pirates, Last Starfighter, Mars Attacks!, Men in Black, Short Circuit, Spaceballs, and Weird Science.
This list from "Sci Fi Jungle" is getting some major airplay from a mention on http://www.sfsignal.com/ to getting some attention from Digg users.
