How many movies have Takehito Koyasu and Yuichi Tagami collaborated on?

They have worked on 5 movies together! Their first movie together was Code Geass: Akito the Exiled 1: The Wyvern Arrives (2012) while their highest rated movie together was Gintama: The Movie: The Final Chapter: Be Forever Yorozuya (2013). They have not worked together since Code Geass: Akito the Exiled 5: To Beloved Ones (2016). They are most known for their animation films together.