How many movies have Kōji Wakamatsu and Masayuki Kakegawa collaborated on?

They have worked on 7 movies together! Their first movie together was 100 Years of Torture: The History (1975) while their highest rated movie together was United Red Army (2007). They have not worked together since 11.25 The Day He Chose His Own Fate (2012). They are most known for their drama films together.