How many movies have Nobuhiko Obayashi and Yoshiyuki Omori collaborated on?

They have worked on 4 movies together! Their first movie together was The Rocking Horsemen (1992) and was their highest rated movie together. They have not worked together since The Nagaharu Yodogawa Story: A Cineaste's Life in Kobe (1999). They are most known for their comedy films together.