let me tell you a little story, an american business man goes on a trip out to china to make a landmark deal, worth millions. he and the chinese business man discuss these plans over a game of golf. as the american swings his golf club he screams out FOUR! the chinese business man is deeply offended and the deal is off.
four in chinese is a sign of death. people should be aware of cultural differences, especially if you make a movie taking place in china, about chinese characters. i find kung fu panda to be disrespectful to chinese.