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Threshold

5.319811h 37mMovieDramaScience Fiction

Celebrated heart surgeon Thomas Vrain supports the research of an offbeat scientist who has invented an artificial heart. Against the advice of the Ethics Committee, Dr. Vrain decides to perform the first artificial heart transplant.

DirectorRichard Pearce
WriterJames Salter
ProducersJon Slan·Michael Burns

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Threshold was released on September 19, 1981 but we couldn't find it on any streaming service yet. Rights can change — try again later.

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Cast · Directed by Richard Pearce

DSDonald Sutherland
Donald Sutherland
Dr. Thomas Vrain
JMJohn Marley
John Marley
Edgar Fine
SASharon Acker
Sharon Acker
Tilla Vrain
MWMare Winningham
Mare Winningham
Carol Severance
JGJeff Goldblum
Jeff Goldblum
Dr. Aldo Gehring
MLMichael Lerner
Michael Lerner
Henry De Vici
RBRichard Blackburn
Richard Blackburn
Dr. Cutter
MG
Michael C. Gwynne
Jay Wingate
RJRobert Joy
Robert Joy
David Art
ANAllan F. Nicholls
Allan F. Nicholls
Dr. Basil Rents
KTKate Trotter
Kate Trotter
Mrs. Anderson
LCLally Cadeau
Lally Cadeau
Anita, Vrain's Secretary

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Threshold — streaming FAQ

Which OTT platform streams Threshold?

Threshold isn't streaming anywhere in Canada yet.

Is Threshold on Netflix?

No, Threshold is not on Netflix in Canada as of November 2026.

Is Threshold on Amazon Prime Video?

No, Threshold isn't on Amazon Prime Video in Canada right now.

Where can I watch Threshold for free?

Threshold isn't streaming in Canada yet, so there's no way to watch it free at the moment.

What is the OTT release date for Threshold?

Threshold hasn't started streaming in Canada yet. Based on the typical 6–8 week theatrical-to-streaming window, we estimate it will arrive around November 7, 1981. This is a prediction, not a confirmed date.