How many movies have Shinya Sadamitsu and Yoshikazu Yasuhiko collaborated on?

They have worked on 3 movies together! Their first movie together was Mobile Suit Gundam I (1981) while their highest rated movie together was Mobile Suit Gundam III: Encounters in Space (1982). They have not worked together since Mobile Suit Gundam III: Encounters in Space (1982). They are most known for their science fiction films together.