
Based on the true 1945 case of Soviet cipher clerk Igor Gouzenko (Dana Andrews), posted to the USSR Embassy in Ottawa during World II. He defected with 109 pages of documents that implicated senior Canadian officials and revealed sleeper cells gathering nuclear‑bomb information. The scandal, exposed by columnist Drew Pearson in early 1946, drew Canada, Britain and the United States into the controversy.
Does The Iron Curtain have end credit scenes?
No!
The Iron Curtain does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of The Iron Curtain, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Edna Best
Mrs. Albert Foster

Dana Andrews
Igor Gouzenko

Christopher Olsen
Andrei Gouzenko

Berry Kroeger
John Grubb, aka 'Paul'

Gene Tierney
Anna Gouzenko

Stefan Schnabel
Col. Ilya Ranov

Nicholas Joy
Dr. Harold Preston Norman, aka 'Alec'

June Havoc
Nina Karanova

Frederic Tozere
Col. Aleksandr Trigorin (as Frederic Tozère)

Eduard Franz
Maj. Semyon Kulin
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Challenge your knowledge of The Iron Curtain with this fun and interactive movie quiz. Test yourself on key plot points, iconic characters, hidden details, and memorable moments to see how well you really know the film.
Which actor portrays the code‑breaker Igor Gouzenko?
Dana Andrews
Gene Tierney
Berry Kroeger
Nicholas Joy
Show hint
Read the complete plot summary of The Iron Curtain, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
Igor Gouzenko [Dana Andrews]—an expert at deciphering codes—arrives at the Soviet embassy in Ottawa in 1943 with a Soviet military colonel, Trigorin [Frederic Tozere], and a major, Kulin [Eduard Franz], to establish a discreet base of operations. From the outset, Igor is briefed on how sensitive and top-secret his work is, and the air of danger that surrounds every move they make.
To test his loyalty, Igor faces a calculated temptation: the seductive Nina Karanova [June Havoc] tries to sway him from his duties. Yet Igor remains steadfast, loyal not only to the cause but to his wife, Anna Gouzenko [Gene Tierney], who soon joins him in Ottawa and reveals that she is pregnant, a detail that deepens the personal stakes for the couple.
Trigorin and his security chief, Ranov [Stefan Schnabel], press their case with John Grubb [Berry Kroeger], founder of Canada’s branch of the Communist Party. Their attention centers on uranium used for atomic energy, which they seek to recruit for dangerous purposes through Dr. Harold Norman [Nicholas Joy], a scientist they target as a key ally. The plot underscores the broader Cold War tensions, painting Ottawa as a frontline in espionage and counter-espionage.
As years pass, the world moves from war to shifting power, and the atomic bomb reshapes the global order. Anna bears a son, and the growing family begins to confront questions about their future amid uncertainty. Igor’s doubts deepen after Kulin suffers a breakdown and is arrested, highlighting the fragility of the network they inhabit. When Igor is told he will be reassigned back to Moscow, he makes a fateful decision: he takes secret documents from the Embassy and asks Anna to hide them, preparing for any worst-case scenario.
Trigorin [Frederic Tozere] and Ranov [Stefan Schnabel] threaten Igor and his loved ones in the Soviet Union, but Igor stands firm, refusing to relinquish the papers that could unravel the conspiracy. In response, Grubb and others are recalled to the Soviet Union to answer for their failures, while Canada’s government uses the documents to dismantle the communist cabal on its soil. The Gouzenko family is placed into protective custody, residing under the watch of the Royal Canadian Mounted Police, and granted a secure home as a safeguard against further danger.
The film closes with a sober, hopeful note about the resilience of democratic life and the belief that ultimate security rests in the continued survival of those freedoms.
Yet they have not lost faith in the future. They know that ultimate security for themselves and their children lies in the survival of the democratic way of life.
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