汤唯
Hong Kong filmmaker Huang Feng brought Sammo Hung, Jackie Chan, Tang Wei-cheng, Hu Yin-yin, Angela Mao, Chang Yi and Chin Hsiang-lin to Seoul for a location shoot in 1972. Huang was also looking for impressive new techniques to infuse into the Hong Kong action sequences, and so had his stars train at the Korea Hapkido Association for about four months under Hwang and association chief Ji Han-jae.