How many movies have Hirotoshi Takaya and Sai Yamane collaborated on?

They have worked on 2 movies together! Their first movie together was Fatal Fury: The Motion Picture (1994) and was their highest rated movie together. They have not worked together since Mobile Suit Gundam Narrative (2018).

Mobile Suit Gundam Narrative (2018)

Crew
Key Animation
Crew
Key Animation

Fatal Fury: The Motion Picture (1994)

Crew
Animation Director
Crew
Key Animation