How many movies have Hitoshi Yamaguchi and Yoshiyuki Yamaguchi acted in together?

They have worked on 9 movies together! Their first movie together was Kizu Darake no Jingi (2000) while their highest rated movie together was Agitator (2001). They have not worked together since MURAMASA Chapter 5: Rakshasa (2005). They are most known for their action films together.