Where to stream

Once You Know

6.720211h 45mMovieDocumentary

Today, like a ship entering the storm, the world faces climate change induced collapse. Once You Know, by director Emmanuel Cappellin, is a poetic and poignant exploration of how four of the world’s leading climate scientists and energy experts find truth, chaos, and hope in their work.

DirectorEmmanuel Cappellin

Where to watch

Amazon Prime Video

Amazon Prime Video with Ads

Rakuten TV

YouTube Free

Availability shown for United Kingdom · rights vary by country

Cast · Directed by Emmanuel Cappellin

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Once You Know — streaming FAQ

Which OTT platform streams Once You Know?

Once You Know is streaming on Amazon Prime Video, Rakuten TV and YouTube Free in United Kingdom, and available to rent or buy on Apple TV Store and Amazon Video. It's not currently on Netflix.

Is Once You Know on Netflix?

No, Once You Know is not on Netflix in United Kingdom as of November 2026. It's currently on Amazon Prime Video and Rakuten TV.

Is Once You Know on Amazon Prime Video?

Yes — Once You Know is included with an Amazon Prime Video subscription in United Kingdom as of November 2026.

Where can I watch Once You Know for free?

Once You Know is available to stream free (with ads) on Rakuten TV and YouTube Free in United Kingdom.