How many movies have Kyoji Kobayashi and Mami Koyama acted in together?

They have worked on 2 movies together! Their first movie together was One Million-Year Trip: Bander Book (1978) while their highest rated movie together was The Tale of Osamu Tezuka: I'm Son-Goku (1989). They have not worked together since The Tale of Osamu Tezuka: I'm Son-Goku (1989).