How many movies have Takenori Tsukuma and Yumiko Ishii collaborated on?

They have worked on 4 movies together! Their first movie together was Digimon Adventure 02: Hurricane Touchdown! The Golden Digimentals (2000) and was their highest rated movie together. They have not worked together since Rockman.EXE: The Program of Light and Darkness (2005). They are most known for their animation films together.