Thats a little clip from this old old documentary:



http://www.amazon.co.uk/Jet-Lee-Shao.../dp/B00004CXTT

The scene where one of the monks drags an old fashioned grass roller made of stone with his nut sack is the most eye watering, dope watch tho but I think its only available on VHS, worth the watch if you can get your hands on it!