

Knowledge can be a deadly thing.
While vacationing in St. Moritz, a British couple receive a clue to an imminent assassination attempt, only to learn that their daughter has been kidnapped to keep them quiet.
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Betty Lawrence

Pierre Fresnay
Louis Bernard
Cicely Oates
Nurse Agnes

D.A. Clarke-Smith
Binstead

George Curzon
Gibson

Frank Atkinson
Policeman Shot Behind Mattress (uncredited)
Betty Baskcomb
Lawrence's Maid (uncredited)
Cot D'Ordan
Concierge (uncredited)
Tony De Lungo
Hotel Manager (uncredited)

Clare Greet
Mrs. Brockett (uncredited)
Pat Hagan
Policeman at Siege (uncredited)

Joan Harrison
Secretary (uncredited)
Edward A. Hill-Mitchelson
Minor Role (uncredited)

Alfred Hitchcock
Man in Raincoat Passing Bus (uncredited)
James Knight
Police Inspector (uncredited)

Arnold Lucy
Foreign Dignitary - Target of Assassination (uncredited)

Andreas Malandrinos
Police Sergeant (uncredited)

Henry Oscar
Dentist George Barbor (uncredited)

Charles Paton
Shopkeeper (uncredited)
The Man Who Knew Too Much (1934) CLIP: First scene with Peter Lorre
Clip · YouTube
Man Who Knew Too Much (1934) Original Trailer (Restored) D:Alfred Hitchcock
Trailer · YouTube
The Man Who Knew Too Much - Restoration Demonstration
Featurette · YouTube
Guillermo del Toro on The Man Who Knew Too Much
Featurette · YouTube