How many movies have Hachiro Tako and Tsutomu Yamada collaborated on?

They have worked on 9 movies together! Their first movie together was Woman's Body Archipelago Reconstruction (1972) while their highest rated movie together was Fujio Akatsuka's Gag Porno: In the Mood Once Again (1979). They have not worked together since Mibōjin geshuku: Hatsu nurashi (1980).