How many movies have Isao Yamada and Masahiro Kobayashi collaborated on?

They have worked on 15 movies together! Their first movie together was E-Cup Real Action Take Two: Rich & Ripe (1989) while their highest rated movie together was Perfect Blue: Yume Nara Samete (2002). They have not worked together since Tokyo Booty Nights (2004). They are most known for their drama films together.