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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

Availability shown for Canada · rights vary by country

Cast · Directed by Emmanuel Cappellin

JJJean-Marc Jancovici
Jean-Marc Jancovici
PSPablo Servigne
Pablo Servigne
RHRichard Heinberg
Richard Heinberg
SHSaleemul Huq
Saleemul Huq
SMSusanne Moser
Susanne Moser

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Once You Know — streaming FAQ

Which OTT platform streams Once You Know?

Once You Know isn't on any subscription service in Canada right now, but you can rent or buy it on Apple TV Store, YouTube and Amazon Video. It's not on Netflix.

Is Once You Know on Netflix?

No, Once You Know is not on Netflix in Canada as of October 2026. You can rent or buy it on Apple TV Store and YouTube.

Is Once You Know on Amazon Prime Video?

Once You Know isn't included with a Prime Video subscription in Canada, but you can rent or buy it on Amazon Video.

Where can I watch Once You Know for free?

Once You Know isn't available free in Canada; you can only rent or buy it on Apple TV Store and YouTube.