What some people don't realize is that Kung Pow was overdubbed onto an actual 70s martial arts movie. They did shoot new footage, but many of the scenes are just the main character superimposed into the original, with the audio changed of course. The star actually did all the overdubbed voices in the film himself, including the women. Since the whole movie is overdubbed, the actors were usually just saying nonsense in the new footage (one of the lines is about a portal to another world in some guy's nipple).