The "iron triangle" of director Chang Cheh and stars David Chiang and Ti Lung -- not to mention action choreographer Liu Chia-liang - made this kung-fu/Thai boxing combo one of 1971's megahi... Read allThe "iron triangle" of director Chang Cheh and stars David Chiang and Ti Lung -- not to mention action choreographer Liu Chia-liang - made this kung-fu/Thai boxing combo one of 1971's megahits -- second only to Bruce Lee's The Big Boss.The "iron triangle" of director Chang Cheh and stars David Chiang and Ti Lung -- not to mention action choreographer Liu Chia-liang - made this kung-fu/Thai boxing combo one of 1971's megahits -- second only to Bruce Lee's The Big Boss.