One Piece Film: Strong World

One Piece Film: Strong World (ワンピースフィルム ストロングワールド Wan Pīsu Firumu: Sutorongu Wārudo) is the tenth feature film based on the One Piece franchise, premiering on December 12, 2009 in Japan. It was written by manga creator Eiichiro Oda himself in honor of One Piece's Tenth Anniversary, and was directed by Munehisa Sakai.