This footage is from 1975 when Leung Ting first came to Germany at the request of Sifu Keith Kernspecht. Too bad for him he doesn't feel he needs to show off anymore. He would have many more students in the US if he did:
Toward the middle of this video you can see a perfectly executed "Siu Nim Tau form" (Wing Tsun's first of only three empty-hand forms). The freeze-frame here shows the 'wu sao' movement of the third ("saam pai fut") set of the form. Watch and learn.