How many movies have Kazuo Kuroki and Yukio Kubota collaborated on?

They have worked on 4 movies together! Their first movie together was Preparation for the Festival (1975) while their highest rated movie together was The Blossoming of Etsuko Kamiya (2006). They have not worked together since The Blossoming of Etsuko Kamiya (2006). They are most known for their drama films together.