How many movies have Kazuyoshi Nagazawa and Koichi Sakamoto collaborated on?

They have worked on 2 movies together! Their first movie together was Kamen Rider × Kamen Rider Wizard & Fourze: Movie Wars Ultimatum (2012) while their highest rated movie together was Uchu Sentai Kyuranger: Episode of Stinger (2017). They have not worked together since Uchu Sentai Kyuranger: Episode of Stinger (2017).