How many movies have Minami Takayama and Yuichiro Nakajima collaborated on?

They have worked on 4 movies together! Their first movie together was Nintama Rantaro the Movie: Ninjutsu Academy - All Hands on Deck! (2011) while their highest rated movie together was Love Live! The School Idol Movie (2015). They have not worked together since Case Closed: The Crimson Love Letter (2017). They are most known for their animation films together.