The Prodigal Son (1981)

I cried from laughter at the pair of marbles they put in Yuen's sidekick's mouth to make him look stupid. Go watch every movie you can that has both Yuen Biao and Sammo Hung, I'm going through them as quickly as I can, and I have yet to be disappointed. I particularly recommend "My Lucky Stars" and "Knockaround." In this movie they clearly pay tribute to their Peking Opera heritage (where they and Jackie Chan received their earliest training). Really, these guys made far better movies after Jackie Chan came to America to make unbridled steaming piles of "oh look, I can hurt myself!" I do realize, however, that these movies aren't for everyone. However, if you're even reading this, your interest must be great enough that you've searched out this movie on purpose, in which case, you must go get it.