How many movies have Rumiko Ishikawa and Yoji Yamada collaborated on?

They have worked on 5 movies together! Their first movie together was Tora-san's Bluebird Fantasy (1986) while their highest rated movie together was Tora-san Plays Daddy (1987). They have not worked together since Tora-san Goes to Vienna (1989). They are most known for their comedy films together.