How many movies have Shintarō Katsu and Takuya Kitano acted in together?

They have worked on 8 movies together! Their first movie together was The Notorious Man's Return (1962) while their highest rated movie together was Lone Wolf and Cub: Baby Cart at the River Styx (1972). They have not worked together since Akumyo: Notorious Dragon (1974). They are most known for their action films together.