How many movies have Eiji Komatsu and Keisuke Watabe collaborated on?

They have worked on 3 movies together! Their first movie together was RahXephon: Pluralitas Concentio (2003) while their highest rated movie together was One Piece: Baron Omatsuri and the Secret Island (2005). They have not worked together since Mobile Suit Gundam 00 The Movie: -A Wakening of the Trailblazer- (2010). They are most known for their animation films together.