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30 Is a Dangerous Age, Cynthia! poster
MOVIE

30 Is a Dangerous Age, Cynthia!

TMDb5.4IMDbView on IMDb ↗1968-03-04· 85 min
ComedyRomance

A 29-year old aspiring composer—still single and without any romantic prospects—vows to both marry and write a hit musical before he turns 30. Director Joseph McGrath's 1968 British comedy stars Dudley Moore, Suzy Kendall, Eddie Foy Jr. and Patricia Routledge.

Top cast

Below are the streaming services currently carrying the movie “30 Is a Dangerous Age, Cynthia!” 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 30 Is a Dangerous Age, Cynthia! 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 currently available on the supported providers in Canada.

Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 15 Sept 2026.

Where to watch 30 Is a Dangerous Age, Cynthia! by country