How many movies have Heihachiro Watanabe and Takeshi Tajima collaborated on?

They have worked on 9 movies together! Their first movie together was Tanshin funin jōji no himitsu (1981) while their highest rated movie together was Woman with Wet Fingers (1984). They have not worked together since Woman with Wet Fingers (1984). They are most known for their drama films together.