How many movies have Shinji Yamada and Shinsho Nakamaru collaborated on?

They have worked on 7 movies together! Their first movie together was Zeccho shimai ochiru (1982) while their highest rated movie together was Koichiro Uno's Dirty Sisters' Barber Shop (1983). They have not worked together since Monster Woman '88 (1988). They are most known for their drama films together.