How many movies have Isamu Nishiyama and Ryo Sugisaki collaborated on?

They have worked on 2 movies together! Their first movie together was Goblin Slayer: Goblin's Crown (2020) and was their highest rated movie together. They have not worked together since Fate/Grand Order the Movie: Divine Realm of the Round Table: Camelot Wandering; Agateram (2020).