How many movies have Kouhei Tanaka and Masahiro Goto collaborated on?

They have worked on 6 movies together! Their first movie together was One Piece: Baron Omatsuri and the Secret Island (2005) while their highest rated movie together was One Piece: Stampede (2019). They have not worked together since One Piece: Stampede (2019). They are most known for their animation films together.