How many movies have Kazuo Ikehiro and Takeo Watanabe collaborated on?

They have worked on 12 movies together! Their first movie together was Shinobi no mono 8: The Three Enemies (1966) while their highest rated movie together was Broken Swords (1969). They have not worked together since Goyou Sen Enjou (1982). They are most known for their action films together.