One Piece Film: Strong World

During a showing of the Episode of the Island of Perpetual Winter, a teaser for the tenth movie was revealed, which will be released on December 12, 2009 (though was originally meant for a spring release).

What is known about the film is that it is an original story by Eiichiro Oda in honor of One Piece's Tenth Anniversary (In previous films he only supplied character designs and approved story ideas). The movie is apparently set after the Thriller Bark Arc, as Brook is shown alongside the other Straw Hats, making this his first movie appearance. Sengoku, Garp, Shanks and Whitebeard are revealed to be in the film as well.

The movie seems to focus on Nami, who looks to have gotten herself into a situation and possibly forced to leave the Straw Hats once again to join the enemy. In this case, a figure named Kinjishi who, judging by the room the Straw Hats busted into, may be some sort of organization leader. The movie also seem to deal with a "Crystal" ship log.

As the movie is still in development, it possible these facts could change before its released. A teaser trailer was revealed at the Tokyo Animation Fair 2009, revealing the title of the movie as "Strong World.

Recently a new trailer for the movie has been showing giving more insight to the movie. From what information was given, the film show the Straw Hats stumbling on a few floating continents not unlike Skypeia (though these are not hidden above the clouds and not far from the sea) which are apparently ruled over by Kinjishi. The lands are inhabited by a many strange and exotic animals however they're under Kinjishi's control. What more the Marines are trying to stop Kinjishi for some unknown reason. The Straw Hats get involved in the conflict and try to stop whatever he has planned.

The first 1.5 million japanese moviegoers who see One Piece Film Strong World will receive the "0th volume" (One Piece: Kan-Zero) of the manga. In the upcoming "One Piece Kan-Zero" bonus gift will depict the world of One Piece from 20 years ago. It's said this volume is directly related to the plot of the movie.

Synopsis
East Blue in crisis? The news hits the Straw Hat Crew along their journey. With their hometowns facing a crisis, Luffy and his friends put their adventures on hold and search for a way back to East Blue, when suddenly a mysterious flying pirate ship appears out of the sky. The man riding that ship is none other than the infamous Devil Fruit user, Gold Lion Shiki, the same legendary pirate who managed to escape the great undersea prison Impel Down, and stood among such famous pirates as the Pirate King Gold Roger and Whitebeard. After abducting Nami, Shiki sends Luffy and his crew hurdling down to earth. Separated, the crew finds themselves placed in a battle of survival with terrifying beasts on a flying archipelago. Meanwhile, with tears in her eyes, Nami begs Shiki to let her join his crew.

Creatures that evolved on their own respective islands? What happens to the Straw Hat pirates? What is Shiki after? An adventure where the Straw Hats place their very lives on the line begins now!

Trivia

 * Oda had designed the Straw Hats' costumes. So far, they have been seen with three designs: formal suits, adventure suits and onboard suits.
 * It is unknown if this movie is canon since Oda wrote Kinjishi into the manga. Cinema attenders for this movie however will be issued a free "Volume 0" of One Piece showing the events 20 years beforehand.