One Piece Movie 05: Norowareta Seiken
English title: One Piece: The Curse of the Sacred Sword
Japanese title: ワンピース呪われた聖剣
Type: Movie
Source: Manga
Episodes: 1
Status: Finished Airing
Aired: Mar 6, 2004
Duration: 1 hr 35 min
Rating: PG-13 - Teens 13 or older
Studios: Toei Animation
Genres: Action, Adventure, Fantasy
Demographics: Shounen

Luffy and crew go to an island searching for a legendary sword, said to be the most expensive in the world. Soon attacking marines and beautiful maidens split the crew. Zoro betrays the crew to help an old friend, Luffy and Usopp wander through a cave, and the rest help a village fight marines. When Zoro defeats Sanji he takes the sacred pearls that are the only defense against the evil sword that will plunge the world into darkness. 

(Source: ANN)