How many movies have Haruki Kadokawa and Kôhei Tsuka collaborated on?

They have worked on 4 movies together! Their first movie together was The Adventures of Kosuke Kindaichi (1979) while their highest rated movie together was A Naive History of the Bakumatsu Era (1991). They have not worked together since A Naive History of the Bakumatsu Era (1991). They are most known for their comedy films together.