When the camera is positioned above the waterfall, the RMS Titanic can be seen in the water below.
To create the effect of bad dubbing, writer Steve Oedekerk wrote a script of nonsensical dialogue for the actors to say. The real dialogue was dubbed during post-production. For example, when Chosen One says, "But, isn't Betty a woman's name?" If you read his lips, he says, "But, isn't Yahtzee a family game?"
Footage was used from the film The Savage Killers (1976) (original Mandarin title "Hu hao shuang xing", or "Tiger & Crane Fists"). Actors were digitally inserted into scenes from the original film. Steve Oedekerk specifically chose to parody the film out of dozens of other kung-fu movies due to the scene of the villain being hit in the crotch numerous times without flinching.
The film's credit list is followed by a preview for a sequel, and "Kung Pow 2" was listed as being in "pre production" on IMDb for a while in 2003-04. However, Steve Oedekerk insisted when asked about it, that the KP2 trailer was made purely as a gag, and that no sequel was ever seriously considered. The phony sequel idea may have been a tribute to Mel Brooks, who is famous for parodies similar to this one, many of which end with the promise of an outrageous, implausible sequel that Brooks never intended to make.