How many movies have Koichi Sakamoto and Masayuki Deai collaborated on?

They have worked on 7 movies together! Their first movie together was Kamen Rider W Forever: A to Z/The Gaia Memories of Fate (2010) while their highest rated movie together was Super Sentai Strongest Battle Director's Cut (2019). They have not worked together since Good Morning, Sleeping Lion 2 (2023). They are most known for their action films together.