Butt Detective the Movie: The Secret of Souffulé Island poster
Where to stream

Butt Detective the Movie: The Secret of Souffulé Island

202137mMovieAnimation

The story follows Butt Detective and his assistant Brown as they solve a difficult case on Souffulé Island, where people ride the wind and fly in the sky.

DirectorAkifumi Zako
WriterNatsuko Takahashi

Where to watch

Not available in United Kingdom
Streaming in 2 other countries

Butt Detective the Movie: The Secret of Souffulé Island isn't on any streaming service in United Kingdom right now, but it's available in Japan, South Korea. Streaming rights are licensed per country.

Cast · Directed by Akifumi Zako

YSYuko Sanpei
Yuko Sanpei
Butt Detective (voice)
ASAyaka Saito
Ayaka Saito
Brown (voice)
TSTakahiro Sakurai
Takahiro Sakurai
Kaitō U (voice)
IWIkkei Watanabe
Ikkei Watanabe
Chief Maltese (voice)
RSRio Suzuki
Rio Suzuki
Lulu (voice)
HKHiroshi Kamiya
Hiroshi Kamiya
Luca (voice)
SCShigeru Chiba
Shigeru Chiba
Zaza (voice)
AKAkira Kamiya
Akira Kamiya
Pepe (voice)

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Butt Detective the Movie: The Secret of Souffulé Island — streaming FAQ

Which OTT platform streams Butt Detective the Movie: The Secret of Souffulé Island?

Butt Detective the Movie: The Secret of Souffulé Island isn't on any streaming service in United Kingdom yet, but it's available in Japan and South Korea. Streaming rights differ by country — switch your country in the header to see where.

Is Butt Detective the Movie: The Secret of Souffulé Island on Netflix?

No, Butt Detective the Movie: The Secret of Souffulé Island is not on Netflix in United Kingdom as of September 2026.

Is Butt Detective the Movie: The Secret of Souffulé Island on Amazon Prime Video?

No, Butt Detective the Movie: The Secret of Souffulé Island isn't on Amazon Prime Video in United Kingdom right now.

Where can I watch Butt Detective the Movie: The Secret of Souffulé Island for free?

Butt Detective the Movie: The Secret of Souffulé Island isn't streaming in United Kingdom yet, so there's no way to watch it free at the moment.

Is there a sequel to Butt Detective the Movie: The Secret of Souffulé Island?

Yes — Butt Detective the Movie: The Secret of Souffulé Island is followed by Butt Detective the Movie: Shiriarty (2022) in the Butt Detective Collection.

Is there a prequel to Butt Detective the Movie: The Secret of Souffulé Island?

Yes — Butt Detective the Movie: Mystery of the Ruins of Tentōmushi (2020) comes before Butt Detective the Movie: The Secret of Souffulé Island in the Butt Detective Collection.

Is Butt Detective the Movie: The Secret of Souffulé Island part of a trilogy?

No — Butt Detective the Movie: The Secret of Souffulé Island is part of the Butt Detective Collection, which has 7 films.

How many movies are in the Butt Detective Collection?

There are 7 films in the Butt Detective Collection: Butt Detective the Movie: The Curry Incident (2019), Butt Detective the Movie: Mystery of the Ruins of Tentōmushi (2020), Butt Detective the Movie: The Secret of Souffulé Island (2021), Butt Detective the Movie: Shiriarty (2022), Butt Detective the Movie: The Dream Jumbo Sweet Potato Cake Festival (2022), Butt Detective the Movie: Farewell, Oh My Beloved Butty (2024) and Butt Detective the Movie: Star and Moon (2025).