How many movies have Eiji Iwase and Satoshi Sakai collaborated on?

They have worked on 3 movies together! Their first movie together was Girls und Panzer der Film (2015) while their highest rated movie together was Digimon Adventure: Last Evolution Kizuna (2020). They have not worked together since Digimon Adventure: Last Evolution Kizuna (2020). They are most known for their action films together.