How many movies have Kunihiko Sakurai and Tensai Okamura collaborated on?

They have worked on 5 movies together! Their first movie together was Space-Time Traveler - Time Stranger (1986) while their highest rated movie together was Legend of the Galactic Heroes: My Conquest Is the Sea of Stars (1988). They have not worked together since Legend of the Galactic Heroes: My Conquest Is the Sea of Stars (1988). They are most known for their animation films together.