How many movies have Yoshihiro Matsushita and Yoshito Usui collaborated on?

They have worked on 2 movies together! Their first movie together was Crayon Shin-chan: Dengeki! Buta no Hizume Daisakusen (1998) while their highest rated movie together was Crayon Shin-chan: The Legend Called Buri Buri 3 Minutes Charge (2005). They have not worked together since Crayon Shin-chan: The Legend Called Buri Buri 3 Minutes Charge (2005).