How many movies have Naozumi Yamamoto and Tokuko Sugiyama collaborated on?

They have worked on 8 movies together! Their first movie together was It's Tough Being a Man (Television Drama DVD Edit Edition) (1968) while their highest rated movie together was Stage-Struck Tora-san (1978). They have not worked together since Tora-san, the Go-Between (1985). They are most known for their comedy films together.