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Know For Sure poster
MOVIE

Know For Sure

TMDb4.2IMDbView on IMDb ↗1941-10-17· 23 min
Drama

A 1941 film encouraging people to seek treatment if they had, or might have had, syphilis.

Top cast

Below are the streaming services currently carrying the movie “Know For Sure” in Canada, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in Canada can differ from other countries.

Where to watch Know For Sure in Canada

Netflix
Netflix
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OSN+
OSN+
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Amazon Prime Video
Amazon Prime Video
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Shahid
Shahid
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Watch It
Watch It
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TOD
TOD
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Disney+
Disney+
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Apple TV+
Apple TV+
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Not available

Not currently available on the supported providers in Canada.

Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 14 Sept 2026.

Where to watch Know For Sure by country