One Piece Film: Strong World is the 10th One Piece film of the series. It was written by manga creator Eiichiro Oda himself. It was directed by Munehisa Sakai. News of the movie first appeared during a showing of the Episode of Chopper Plus, during which a teaser for the tenth movie was revealed. The movie was originally meant for a spring release in 2009, but complications with the script pushed the release date back. Eventually, the movie premiered on December 12, 2009. On July 28, 2012, FUNimation announced that they had acquired the license to One Piece Film: Strong World and have since announced the release date as November 19th.