How many movies have Rie Nishiyama and Tessyo Genda collaborated on?

They have worked on 2 movies together! Their first movie together was Dr. Slump: Hoyoyo! Space Adventure (1982) while their highest rated movie together was Crayon Shin-chan: Dengeki! Buta no Hizume Daisakusen (1998). They have not worked together since Crayon Shin-chan: Dengeki! Buta no Hizume Daisakusen (1998).