How many movies have Nobumasa Mizunoo and Yoshirô Sakawa collaborated on?

They have worked on 4 movies together! Their first movie together was Shinjuku Midare Machi: Ikumade Matte (1977) while their highest rated movie together was Beauty Rope Cosmetology (1983). They have not worked together since Reipuhantā: Tōrima (1986). They are most known for their drama films together.