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The Man Who Knew Too Much (1956)

Approved | | Drama, Thriller | 1 June 1956 (USA)
2:09 | Trailer

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A family vacationing in Morocco accidentally stumble on to an assassination plot and the conspirators are determined to prevent them from interfering.



(screenplay), (based on a story by) | 1 more credit »
Won 1 Oscar. Another 1 win & 4 nominations. See more awards »



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Cast overview, first billed only:
Brenda de Banzie ...
Ralph Truman ...
Louis Bernard (as Daniel Gelin)
Mogens Wieth ...
Christopher Olsen ...
Reggie Nalder ...
Richard Wattis ...
Assistant Manager
Noel Willman ...
Alix Talton ...
Yves Brainville ...
Police Inspector


While attending a medical conference in Paris, American physician Dr. Ben McKenna, his wife, retired musical theater actress and singer Jo McKenna née Conway, and their adolescent son Hank McKenna decide to take a side trip to among other places Marrekesh, French Morocco. With a knife plunged into his back, Frenchman Louis Bernard, who the family met earlier in their bus ride into Marrakesh and who is now masquerading as an Arab, approaches Ben, cryptically whispering into Ben's ears that there will be an attempted assassination in London of a statesman, this news whispered just before Bernard dies. Ben is reluctant to provide any information of this news to the authorities because concurrently Hank is kidnapped by British couple, Edward and Lucy Drayton, who also befriended the McKennas in Marrakesh and who probably have taken Hank out of the country back to England. Whoever the unknown people the Draytons are working for have threatened to kill Hank if Ben divulges any information ... Written by Huggo

Plot Summary | Plot Synopsis


Alfred Hitchcock strikes the highest note of suspense the screen has yet achieved! See more »


Drama | Thriller


Approved | See all certifications »

Parents Guide:





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Release Date:

1 June 1956 (USA)  »

Also Known As:

Alfred Hitchcock's The Man Who Knew Too Much  »

Box Office


$2,500,000 (estimated)

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:

(Western Electric Recording)



Aspect Ratio:

1.85 : 1
See  »

Did You Know?


The working title of this film was Into Thin Air. See more »


In the opening scene on the bus, there is a pretty brunette and a pretty blonde sitting in the seat directly in front of Jo. After Hank accidentally pulls the Arab woman's veil off, and goes back to his mother, the two women just disappear in a flash, allowing Louis Bernard to be able to sit down and "interrogate" Jo and Ben. See more »


[to Drayton]
Ambassador: You have muddled everything from the start, taking that child with you from Marrakesh. Don't you realize that Americans dislike having their children stolen?
See more »

Crazy Credits

Partly because the rights to this film were acquired from Paramount by Universal, the Paramount VistaVision fanfare is played over the opening Universal logo. This is the way it is currently (2005) shown on television in the re-release version (1984). See more »


Referenced in Mystery Science Theater 3000: The Deadly Bees (1998) See more »


We'll Love Again
by Jay Livingston and Ray Evans
Performed by Doris Day (uncredited)
See more »

Frequently Asked Questions

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User Reviews

Star Power Carries the Remake
23 July 2001 | by (Ohio) – See all my reviews

Both versions of Hitchcock's "The Man Who Knew Too Much" have their strong points, and are well worth watching. This 1950's remake is carried mostly by its star power, with Jimmy Stewart and Doris Day being convincing and very sympathetic as the parents of the kidnapped child. It also has more lavish settings and better (not just because it is color) photography than the earlier version. On the other hand, it lacks the wittiness of the British version, and moves more slowly.

The remake spends much more time setting up the story than the original did, with the family spending a lot of time on their vacation in Morocco before the crisis occurs. It makes possible some colorful scenery and settings, and allows you to get to know the family a bit more, although the quicker pace in the original established more tension and kept your attention throughout. The Albert Hall sequence works well in both films, with this one having the added bonus of allowing the audience to see Bernard Herrmann, who wrote so many great scores for Hitchcock's films, conducting the orchestra.

Despite having essentially the same story, the two versions of "The Man Who Knew Too Much" have a much different feel. Which one you prefer is largely a matter of taste - while neither is usually considered among Hitchcock's very best, they are both good movies with a lot of strong points. Take a look at both if you have the chance.

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