How many movies have Hiroto Kato and Mari Tominaga collaborated on?

They have worked on 3 movies together! Their first movie together was Go! Anpanman: Ruby's Wish (2003) while their highest rated movie together was Road to Ninja: Naruto the Movie (2012). They have not worked together since Road to Ninja: Naruto the Movie (2012). They are most known for their animation films together.