How many movies have Eiko Hikari and Naozumi Yamamoto collaborated on?

They have worked on 9 movies together! Their first movie together was Tora-san, His Tender Love (1970) while their highest rated movie together was Talk of the Town Tora-san (1978). They have not worked together since Tora-san's Salad-Day Memorial (1988). They are most known for their comedy films together.