As mentioned in the movie, it is forbidden for Wong to teach ping pong to "gwai lo". This is most likely a reference to Dragon - La storia di Bruce Lee (1993) starring Jason Scott Lee. Bruce was forbidden by the elders to teach martial arts to anyone other than Asians. Jason Scott Lee appears in "Balls of Fury" as Siu-Foo.
In separate interviews both Dan Fogler, and Maggie Q said that they were exhausted from all the training for this movie.
Feature film directorial debut for Robert Ben Garant.
George Lopez's character is named Earnie Rodriguez, like his best friend Ernie Cardenas (played by Valente Rodriguez) in the show "George Lopez".