How many movies have Sakabe Tsuyoshi and Takahiro Sakurai collaborated on?

They have worked on 4 movies together! Their first movie together was Digimon Adventure tri. Part 1: Reunion (2015) while their highest rated movie together was Digimon Adventure tri. Part 3: Confession (2016). They have not worked together since Digimon Adventure tri. Part 4: Loss (2017). They are most known for their science fiction films together.