When director Chang Cheh found new talent and blood with “The Five Venoms” actors, most of which were trained in the highly acrobatic Chinese opera and well versed with exotic martial arts weapons, this created a new spark for his use of bizarre weapons in his films. The Flag of Iron is one of 20 movies that he directed featuring the utterly flabbergasting and physically exhausting action bits created by these five dudes. You have the good guys from the righteous clan versus the bad guys from the villainous clan and it's so filled with "don't-blink-or-you-will-miss-something" gags, you will need to watch it over and over again so you can see the things you missed.