How many movies have Chūji Kinoshita and Hiroyuki Ôta collaborated on?

They have worked on 5 movies together! Their first movie together was おゝい雲！ (1965) while their highest rated movie together was The Young Eagles of the Kamikaze (1968). They have not worked together since Love and Separation in Sri Lanka (1976). They are most known for their drama films together.