Under the introduction
of Wu Bin, (China's national
wushu coach and Jet Li «s master), over the course
of three years Wong Kar - wai visited Beijing, Tianjin, Xian, Hebei, Henan, Inner Mongolia, Taiwan, Guangdong, Hong Kong and other locations and over 100 different kung fu masters
of Wing Chun, Eight Diagram, Tai Chi, Xingyi, Tongbei in order to find the spirit and the philosophy behind kung fu.