How many movies have Seiji Mōri and Shintarō Miyamoto collaborated on?

They have worked on 4 movies together! Their first movie together was Kisaragi Sword (1962) while their highest rated movie together was Miyamoto Musashi: The Duel at Ichijo Temple (1964). They have not worked together since A Lively Geisha (1970). They are most known for their drama films together.