How many movies have Yoshikazu Yasuhiko and Yumi Nakatani collaborated on?

They have worked on 2 movies together! Their first movie together was Mobile Suit Gundam I (1981) while their highest rated movie together was Mobile Suit Gundam II: Soldiers of Sorrow (1981). They have not worked together since Mobile Suit Gundam II: Soldiers of Sorrow (1981).