

One Piece: Baron Omatsuri and the Secret Island
2005, Japanese. Directed by Mamoru Hosoda.
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.
- Runtime
- 1h 31m
- Post-credits
- None listed
- Language
- Japanese
- Rated
- PG-13
Start now and it ends at ….
Worth the Hype
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7.2/10 from 266 TMDB viewer ratings.
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Where to watch One Piece: Baron Omatsuri and the Secret Island
One Piece: Baron Omatsuri and the Secret Island isn’t streaming on any OTT platform in India yet; it released on 5 March 2005.
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Part of a series
One Piece: watch order
Cast & crew
- Mamoru HosodaDirector
- Mayumi TanakaMonkey D. Luffy (voice)
- Kazuya NakaiRoronoa Zoro (voice)
- Akemi OkamuraNami (voice)
- Kappei YamaguchiUsopp (voice)
- Hiroaki HirataSanji (voice)
- Ikue OtaniTony Tony Chopper (voice)
- Yuriko YamaguchiNico Robin (voice)
- Akio OtsukaBaron Omatsuri (voice)
- Takeshi KusaoMuchigoro (voice)
- Takeshi AonoKerojii (voice)
- Masaharu SatoKeroshot (voice)
- Joji YanamiKerodeek (voice)
Details
- Released
- 5 March 2005
- Original title
- ワンピース the movie オマツリ男爵と秘密の島
- Country
- Japan
- Written by
- Masahiro Ito
- Box office
- $10M
Check ratings elsewhere
News & fan talk
Watch before One Piece: Baron Omatsuri and the Secret Island
In release order. The films it follows, and anything it builds on.

One Piece: The Movie
2000 · 7.0/10
Worth the HypeEarlier in the series

One Piece: Clockwork Island Adventure
2001 · 6.8/10
Popcorn FlickEarlier in the series

One Piece: Chopper's Kingdom in the Strange Animal Island
2002 · 6.7/10
Popcorn FlickEarlier in the series

One Piece: Dead End Adventure
2003 · 7.0/10
Worth the HypeEarlier in the series

One Piece: Curse of the Sacred Sword
2004 · 6.8/10
Popcorn FlickEarlier in the series
After One Piece: Baron Omatsuri and the Secret Island
What comes next in the series.

One Piece: Giant Mecha Soldier of Karakuri Castle
2006 · 6.9/10
Popcorn FlickNext in the series

One Piece: The Desert Princess and the Pirates: Adventure in Alabasta
2007 · 6.9/10
Popcorn FlickNext in the series

One Piece: Episode of Chopper Plus: Bloom in the Winter, Miracle Cherry Blossom
2008 · 7.0/10
Worth the HypeNext in the series

One Piece Film: Strong World
2010 · 7.4/10
Worth the HypeNext in the series

One Piece Film: Z
2012 · 7.5/10
Worth the HypeNext in the series

One Piece Film: GOLD
2016 · 7.2/10
Worth the HypeNext in the series
Also in the One Piece universe
Released before it. Not required, but they share its world.
If you liked One Piece: Baron Omatsuri and the Secret Island

One Piece: Heart of Gold
2016 · 7.4/10
Worth the HypeFans watch both

One Piece: Clockwork Island Adventure
2001 · 6.8/10
Popcorn FlickSame series: One Piece

One Piece: Curse of the Sacred Sword
2004 · 6.8/10
Popcorn FlickSame series: One Piece

One Piece: Giant Mecha Soldier of Karakuri Castle
2006 · 6.9/10
Popcorn FlickSame series: One Piece

One Piece: Chopper's Kingdom in the Strange Animal Island
2002 · 6.7/10
Popcorn FlickSame series: One Piece

One Piece: Stampede
2019 · 7.8/10
Worth the HypeSame series: One Piece

One Piece: The Movie
2000 · 7.0/10
Worth the HypeSame series: One Piece

One Piece: Romance Dawn Story
2008 · 6.1/10
NewFans watch both

One Piece Film: Strong World
2010 · 7.4/10
Worth the HypeSame series: One Piece

One Piece Episode of Merry: The Tale of One More Friend
2013 · 7.1/10
Worth the HypeFans watch both
One Piece: Baron Omatsuri and the Secret Island: quick answers
What should I watch before One Piece: Baron Omatsuri and the Secret Island?
Watch One Piece: Clockwork Island Adventure (2001), One Piece: Chopper's Kingdom in the Strange Animal Island (2002), One Piece: Dead End Adventure (2003), and One Piece: Curse of the Sacred Sword (2004) first, plus 1 earlier title listed on this page.
What comes after One Piece: Baron Omatsuri and the Secret Island?
Next in the series: One Piece: Giant Mecha Soldier of Karakuri Castle (2006), One Piece: The Desert Princess and the Pirates: Adventure in Alabasta (2007), and One Piece: Episode of Chopper Plus: Bloom in the Winter, Miracle Cherry Blossom (2008).
Is One Piece: Baron Omatsuri and the Secret Island worth watching?
Our verdict is Worth the Hype: Clear your evening for this. It scores 7.2/10 from 266 TMDB viewer ratings.
How long is One Piece: Baron Omatsuri and the Secret Island?
One Piece: Baron Omatsuri and the Secret Island runs 91 minutes (1h 31m).
Does One Piece: Baron Omatsuri and the Secret Island have a post-credits scene?
None is listed for One Piece: Baron Omatsuri and the Secret Island. Viewers tag these on TMDB, so a brand-new film may not be tagged yet.
One Piece: Baron Omatsuri and the Secret Island parents guide: is it suitable for kids?
One Piece: Baron Omatsuri and the Secret Island is rated PG-13 in India. Check the rating guidance before watching with young children.
Which OTT platform is One Piece: Baron Omatsuri and the Secret Island on?
One Piece: Baron Omatsuri and the Secret Island isn’t streaming on any OTT platform in India yet; it released on 5 March 2005. (Checked 14 November 2026.)
What movies are like One Piece: Baron Omatsuri and the Secret Island?
If you liked One Piece: Baron Omatsuri and the Secret Island, try One Piece: Heart of Gold, One Piece: Clockwork Island Adventure, One Piece: Curse of the Sacred Sword.
Who directed One Piece: Baron Omatsuri and the Secret Island?
One Piece: Baron Omatsuri and the Secret Island (2005) was directed by Mamoru Hosoda and stars Mayumi Tanaka, Kazuya Nakai, Akemi Okamura.
