How many movies have Naofumi Yamamoto and Tomohiro Ishii acted in together?

They have worked on 21 movies together! Their first movie together was NJPW Wrestle Kingdom 1 (2007) while their highest rated movie together was NJPW New Year Dash !! 2017 (2017). They have not worked together since NJPW/AJPW/NOAH All Together: Again (2023).