How many movies have Sai Yamane and Shuuji Sakamoto collaborated on?

They have worked on 3 movies together! Their first movie together was Slayers Great (1997) while their highest rated movie together was Mobile Suit Gundam: Cucuruz Doan's Island (2022). They have not worked together since Mobile Suit Gundam: Cucuruz Doan's Island (2022). They are most known for their animation films together.