How many movies have Rikiya Koyama and Shinpei Koikawa collaborated on?

They have worked on 2 movies together! Their first movie together was Berserk: The Golden Age Arc II - The Battle for Doldrey (2012) while their highest rated movie together was Berserk: The Golden Age Arc III - The Advent (2013). They have not worked together since Berserk: The Golden Age Arc III - The Advent (2013).