How many movies have Nobutaka Ike and Youichirou Yamamoto collaborated on?

They have worked on 3 movies together! Their first movie together was The Garden of Sinners: Future Gospel (2013) while their highest rated movie together was Love Live! The School Idol Movie (2015). They have not worked together since Love Live! The School Idol Movie (2015). They are most known for their animation films together.