Movie guide
One Piece: Baron Omatsuri and the Secret Island (2005): movie guide
One Piece: Baron Omatsuri and the Secret Island (2005) is a Action, Animation, Comedy running about 91 minutes. It holds a TMDB score of 7.2/10 from 266 votes. Notable cast includes Mayumi Tanaka, Kazuya Nakai, Akemi Okamura, Kappei Yamaguchi. Cinema Box covers trailers, cast, and details for discovery — not full streaming.
- Released: 2005-03-05
- Runtime: 91 min
- TMDB: 7.2/10
- Genres: Action, Animation, Comedy
Last updated: 2026-11-11 · First listed: 2005-03-05

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What is One Piece: Baron Omatsuri and the Secret Island about?
The Straw Hats visit a recreational island, run by Baron Omatsuri, who asks them to complete a series of ordeals if they wish to stay on the island. Luffy accepts and the Straw Hats work together to complete them, but as the island's mysteries unfold, their lives and friendships are put to the test. It's up to Luffy to stop the Baron's plot and keep his crew together.
Cast highlights
One Piece: Baron Omatsuri and the Secret Island features Mayumi Tanaka, Kazuya Nakai, Akemi Okamura, Kappei Yamaguchi, Hiroaki Hirata, Ikue Otani. Open the Cinema Box title page for the full cast list and character credits.
Key facts
Release date: 2005-03-05. Runtime: 91 minutes. TMDB score: 7.2/10 (266 votes). Genres: Action, Animation, Comedy, Adventure, Fantasy. Original language: ja. Status: Released.
Discover One Piece: Baron Omatsuri and the Secret Island on Cinema Box
Cinema Box is a movie and TV discovery app for Android. Use it to browse One Piece: Baron Omatsuri and the Secret Island, watch official trailers when available, save titles to your list, and plan what to watch — without hosting or streaming full films.
Frequently asked questions
- What genre is One Piece: Baron Omatsuri and the Secret Island?
- One Piece: Baron Omatsuri and the Secret Island is listed as Action, Animation, Comedy, Adventure, Fantasy on TMDB.
- How long is One Piece: Baron Omatsuri and the Secret Island?
- One Piece: Baron Omatsuri and the Secret Island runs about 91 minutes.
- Who stars in One Piece: Baron Omatsuri and the Secret Island?
- Cast highlights include Mayumi Tanaka, Kazuya Nakai, Akemi Okamura, Kappei Yamaguchi, Hiroaki Hirata, Ikue Otani.








