How many movies have Eiji Yoshikawa and Ryōsuke Kagawa collaborated on?

They have worked on 12 movies together! Their first movie together was Miyamoto musashi Ichijōji kettō (1942) while their highest rated movie together was Miyamoto Musashi: Showdown at Hannyazaka Heights (1962). They have not worked together since Miyamoto Musashi: The Duel at Ichijo Temple (1964). They are most known for their drama films together.