just saw this one last night. it stars danny mcbride (tropic thunder, eastbound and down) as a karate instructor in some crappy dojo in a strip mall. this guy is rapidly becoming one of my favorites. this flick is fugging hilarious - i highly recommend going out and renting it if you want to watch a comedy.
i saw hot rod right after, which was funny as well. it wasn't as good as the foot fist way, but the plot was definitely funnier. earning money to pay for your step father's surgery so you can beat him up to earn his respect is classic.
run ronnie run was the third one i watched. you guys heard of this? it stars david cross (mr show with bob and david, arrested development) - it was basically a long version of a skit they used to do on mr show. very similar to joe dirt and just as funny.