How many movies have Koji Arima and Momonosuke Ichikawa acted in together?

They have worked on 20 movies together! Their first movie together was 牢獄の花嫁 (1955) while their highest rated movie together was Bored Hatamoto: The Daimonji Conspiracy (1959). They have not worked together since The Cave of the Vampire Bats (1961).