How many movies have Keiichi Hara and Toyoko Hashimoto collaborated on?

They have worked on 1 movie together! Their first movie together was Crayon Shin-chan: Dengeki! Buta no Hizume Daisakusen (1998) and was their highest rated movie together. They have not worked together since Crayon Shin-chan: Dengeki! Buta no Hizume Daisakusen (1998).