How many movies have Fei Hung and Ryotaro Okiayu collaborated on?

They have worked on 2 movies together! Their first movie together was Fate/Grand Order the Movie: Divine Realm Of The Round Table: Camelot Paladin; Agateram (2021) while their highest rated movie together was One Piece Film Red (2022). They have not worked together since One Piece Film Red (2022).