How many movies have Kyōsuke Machida and Seiji Yada collaborated on?

They have worked on 4 movies together! Their first movie together was Yakuza Hooligans (1966) while their highest rated movie together was Three Gamblers (1967). They have not worked together since Red Peony Gambler: Biographies of a Gambling Room (1969). They are most known for their drama films together.