How many movies have Eiko Maruyama and Koji Arima acted in together?

They have worked on 11 movies together! Their first movie together was 祇園物語　春怨 (1951) while their highest rated movie together was A Spectacular Showdown (1959). They have not worked together since 鷹天皇飄々剣　吉野の風雲児 (1962).