MOVIE
Sound an Alarm
Documentary
An instructional film released by the UK Warning and Monitoring Organization which depicts its operations in the lead-up to and aftermath of a hypothetical nuclear attack on the United Kingdom.
Top cast
John WelshSector Controller- Tony ThawntonChief Meteorological Officer
Edward UnderdownDuty Controller
Valerie Van OstNurse- Michael SmeePost Chief Observer
Larry MartynPost Observer
Guy StandevenPost Observer- Ian PattersonDoctor
- Richard ButlerROC Sector Officer
- John GrahamChief Scientist
- Brian ForsterChief Warning Officer
- Michael McStayFrench Liaison Officer
Below are the streaming services currently carrying the movie “Sound an Alarm” 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 Sound an Alarm in Canada
Netflix
Not available on this platform
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OSN+
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Amazon Prime Video
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Shahid
Not available on this platform
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Watch It
Not available on this platform
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TOD
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Disney+
Not available on this platform
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Apple TV+
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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: 20 Sept 2026.