How many movies have Shingo Nishimura and Toshiharu Mizutani collaborated on?

They have worked on 2 movies together! Their first movie together was Shimajirou the Movie: Great Adventure on Magic Island (2018) while their highest rated movie together was Shimajiro to Ururu no Heroland (2019). They have not worked together since Shimajiro to Ururu no Heroland (2019).