Drunken Master (1978)

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The father of Wong Fei-hong, who has been attempting to teach his son kung-fu, but has found him too disobedient to teach and decides to send him off to his uncle, a cruel and torturous master of the 8-Drunken Genii kung-fu. After much suffering the son comes back to rescue the father from an assassin who has also previously humiliated Naughty Panther.