One Piece Movie 6: Omatsuri Danshaku to Himitsu no Shima  

One Piece: Baron Omatsuri and the Secret Island, One Piece Movie 06: Omatsuri Danshaku to Himitsu no Shima

The crew of the Straw Hat decides to take advantage of an advertisement they find for a leisurely island on the Grand Line. Luffy is excited to unwind, but when they arrive at the island, they are met with contests that require cooperation in order to access relaxation. There's something eerie about the island as the Straw Hat Pirates start fighting among themselves while Robin, Chopper and Luffy search for the mystery behind Baron Omatsuri's island.

Released on March 5, 2005, One Piece Movie 6: Omatsuri Danshaku to Himitsu no Shima is the sixth animated feature film of the One Piece franchise. Unlike the long running anime series, this movie is drawn in the unique style of its director Mamoru Hosoda. Hosoda is best known for directing films such as Mirai no Mirai, Summer Wars, and Ookami Kodomo no Ame to Yuki among many others.The movie placed third in Japanese Box Office sales its first week in theaters, falling behind Lorelei: The Witch of the Pacific Ocean in first and Shark Tale in second. The movie remained in the Top 10 of the Japanese Box Office for a total of 6 weeks.