How many movies have Mariko Aoki and Tenshi Yamamoto collaborated on?

They have worked on 4 movies together! Their first movie together was Legend of Crystania: The Motion Picture (1995) while their highest rated movie together was Detective Conan: The Time Bombed Skyscraper (1997). They have not worked together since Detective Conan: The Time Bombed Skyscraper (1997). They are most known for their animation films together.