How many movies have Shuuji Sakamoto and Takehito Koyasu collaborated on?

They have worked on 6 movies together! Their first movie together was Legend of the Galactic Heroes: Golden Wings (1992) while their highest rated movie together was Revolutionary Girl Utena: The Adolescence of Utena (1999). They have not worked together since Code Geass: Akito the Exiled 3: The Brightness Falls (2015). They are most known for their animation films together.