How many movies have Koichi Sakamoto and You Murakami collaborated on?

They have worked on 1 movie together! Their first movie together was Ultraman Ginga S the Movie: Showdown! The 10 Ultra Warriors! (2015) and was their highest rated movie together. They have not worked together since Ultraman Ginga S the Movie: Showdown! The 10 Ultra Warriors! (2015).