How many movies have Meiko Kaji and Shinji Watanabe collaborated on?

They have worked on 3 movies together! Their first movie together was Samurai Justice 2: Mother & Daughter (2005) while their highest rated movie together was Onihei Crime Files: The Inside Woman (2008). They have not worked together since Onihei Crime Files: The Inside Woman (2008). They are most known for their crime films together.