How many movies have Hiroki Takano and Ke Luan collaborated on?

They have worked on 4 movies together! Their first movie together was Fate/kaleid liner Prisma☆Illya: Vow in the Snow (2017) while their highest rated movie together was Gintama: The Very Final (2021). They have not worked together since Gintama: The Very Final (2021). They are most known for their animation films together.