How many movies have Junjiro Niizeki and Shintarō Katsu acted in together?

They have worked on 3 movies together! Their first movie together was Zatoichi Goes to the Fire Festival (1970) while their highest rated movie together was Lone Wolf and Cub: Baby Cart at the River Styx (1972). They have not worked together since Lone Wolf and Cub: Baby Cart at the River Styx (1972). They are most known for their drama films together.