Jet Li broke his right wrist during filming, necessitating some very creative fight choreography in the climactic battle.
The Chinese producers that accompanied the prop-makers, stunt-men, and cast, frequently added new scenes and shots on the fly during shooting. This did not allow for the prep-time common to the American crew and directors. It was typical that while shooting exteriors, as the day came to an end - as the sun began to set - the Chinese directors, producers, and cast would begin to speak almost entirely in Chinese, frantically calling for new shots and setups as the light was quickly fading. The American directors, cameramen, grips etc., would likewise then jump into a frenzy trying to both understand the desires of the Chinese producers and set up the impromptu shots.
This movie is filmed in 1989, but it was not released until 1992 after the success of Once Upon A Time in China.
According to rumor, Jet Li and Jerry Trimble did not get along with each other during production. On the commentary for the Fortune Star DVD release, Bey Logan addresses this and claims that while Li and Trimble were not unfriendly, they viewed each other competitively based on their respective backgrounds in martial arts.