How many movies have Junkichi Ôki and Kōen Okumura collaborated on?

They have worked on 2 movies together! Their first movie together was Akio Jissoji's Wonder Museum 1 (1992) while their highest rated movie together was Akio Jissoji's Museum of Wonders - Volume of Discourse (1992). They have not worked together since Akio Jissoji's Museum of Wonders - Volume of Discourse (1992).