One Piece: Stampede is an upcoming Japanese animated fantasy action adventure film directed by Takashi Otsuka and produced by Toei Animation. It is the fourteenth feature film of the One Piece film series, based on the manga of the same name written and illustrated by Eiichiro Oda. It will commemorate the anime's 20th anniversary. The news was first announced following the broadcast of Episode of Sky Island. The film's title was announced alongside a teaser trailer on December 11, 2018. It is scheduled for release on August 9, 2019.