How many movies have Masafumi Watanabe and Tomoko Nitta collaborated on?

They have worked on 4 movies together! Their first movie together was Donten: Laughing Under the Clouds - Gaiden: Chapter 3 - Conspiracy of the Military (2018) and was their highest rated movie together. They have not worked together since maboroshi (2023). They are most known for their animation films together.