[[quoteright:230:http://static.tvtropes.org/pmwiki/pub/images/The_Man_Who_Knew_Too_Much_1956_1669.jpg]]
[[caption-width-right:230:1956 film]]

->''A man...a statesman...is to be killed...assassinated...in London...soon...very soon. Tell them...in London... Ambrose Chappell...''
-->--'''Louis Bernard'''

''The Man Who Knew Too Much'' was first a 1922 book of detective stories, then a 1934 film by Creator/AlfredHitchcock, who [[TheRemake remade]] the film in 1956.

* The 1934 film: featured Creator/PeterLorre as a villain; with Leslie Banks and Edna Best as Bob and Jill Lawrence as a British couple who find themselves having to help stop an assassination.

* In the 1956 film: [[Creator/JimmyStewart James Stewart]] and Doris Day star as Ben and Jo [=McKenna=], Americans traveling to Morocco with their son Hank (Christopher Olsen). On the bus they meet the amiable Bernard, who puts Jo on edge for remaining mysterious while asking them numerous questions about themselves. Soon her suspicions are confirmed when Bernard stumbles out of a crowd, in disguise and mortally wounded, to whisper a secret message to Ben with his dying breath. Unwittingly embroiled in events beyond their understanding, Ben and Jo quickly learn that there are dangerous people out there who very much want to keep the information a secret.

Has nothing to do with ''Film/TheManWhoKnewTooLittle'' beyond the [[ShoutOut title]] and [[MistakenForSpies a similar theme for the plot]].

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!!The 1934 film has examples of the following:
* AdultFear: The heroes try to thwart the assassination plot mainly because the assassins kidnap their child, Betty, and threaten to destroy her if they give the police the information that Bernard left.
* ChekhovsGun: Many of the elements appearing in the first two scenes become significant later on.
** Jill's shooting ability comes in handy when rescuing her daughter at the end.
** Ramon's shooting, demonstrated in the same scene, becomes part of the assassination plot.
** Abbott's musical watch alerts us to his presence when he reappears.
** Jill gives Betty a brooch. The brooch is later given back to Jill as a reminder that the bad guys still have Betty prisoner.
* ConcertClimax
* DepravedDentist: Justified in that he's ''actually'' a foreign spy trying to stop the hero from interfering with the assassination.
* [[IHaveYourWife I Have Your Child]]
* InNameOnly: The films to the original book. Hitchcock had the right to adapt some of its stories, but decided all he really wanted was the book's title.
* MonumentalBattle: At Royal Albert Hall. Creator/AlfredHitchcock seems fond of this trope.
* MusicalTrigger: One specific cymbal clash in the ''Stormcloud Canata'' was the assassin's cue to kill, since that was the loudest moment of the cantata, so it would have masked the sound of the gunshot.
* PapaWolf: Bob
* PoliceAreUseless: Well, not entirely, but when Clive shows up to rescue Bob with a single bobby, the cop not only refuses to break into the church, but turns around and arrests ''him''!

!!The 1956 film has examples of the following:
* AdaptationalBadass: The father gets captured by the assassins in both versions, but Ben manages to escape earlier than Bob did. Ben also [[spoiler: brings two of the criminals to their deaths]].
* AdaptationalWimp: The mother changed from a clever {{Gunslinger}} to a clever retired singer.
* AdaptedOut: The mother's brother, who helped search for the assassins' base in the '30s movie.
* AdultFear: The heroes try to thwart the assassination plot mainly because the assassins kidnap their child, Hank, and threaten to destroy him if they give the police the information that Bernard left.
* ArtisticTitle: An orchestra performs the main title against the opening credits to establish the importance of music in the plot.
* BecomingTheMask: [[spoiler:Mrs. Drayton, who pretended to be nice to Hank, only to try and save the him near the films climax.]]
* BilingualBonus: Bernard speeks Arabic and French unsubtitled at different moments.
* BlackComedy: Ben's and Jo's conversation about how as a doctor, people must suffer in order for Ben to make enough money for vacations.
* BreakTheCutie: Jo has a HeroicBSOD after Ben tells her about Hank's kidnapping not only out of AdultFear, but also out of anger for Ben tricking her into swallowing a sedative beforehand, as an attempt to keep her nerves calm.
** Look at her face during the Albert Hall sequence, and you can see a woman who's about to lose it, who knows that something terrible is about to happen and cannot do a thing about it...until she just snaps and screams.
** Near the climax, [[spoiler: she hears Hank whistle to "Qué Será, Será" while she plays on the piano. Becuase she knows he's nearby, but can't do anything to help him, except play.]]
* BreakingTheFourthWall: Jimmy Stewart hosted the trailer as himself, telling the viewers of different places he visited for Hitchcock's then-upcoming movie. The ad also dubbed over a clip so that one of the characters would refer to Jo as Doris Day.
* BrickJoke: In the second act, Ben and Jo excuse themselves from some guests, claiming that they have to pick up Hank from his babysitters. In the epilogue, they return to the apartment a full day later to find the guests are still there, asleep, and apologize for taking so long.
* TheCameo:
** BernardHerrmann, who composed the score for this and several other Hitchcock films, appears as the orchestra conductor during the Albert Hall scene.
** And, of course, [[CreatorCameo Hitchcock himself]]. [[spoiler:In this one he's seen [[TheFaceless with his back to the camera]], watching a group of acrobats in the Marrakesh bazzar.]]
* TheCastShowoff: Doris Day's agents demanded that she sing at least one new song, hence the inclusion of "Qué Será, Será" and "We'll Love Again."
* ChekhovsGun: Jo's strong singing voice averts the assassination and helps locate their son. Hanks whistling also plays a role in his location.
* CloakAndDagger: A lot of that going around.
* ConcertClimax
* ContrivedCoincidence:
** Bernard just happens to stumble into Ben on a crowded street just before dying. The police point out how unlikely that is.
** It's also convenient that by the time Jo tries to call the Scotland Yard inspector to help save Ben from the kidnappers, he has left for Albert Hall. When Ben and Jo go there to see him, all three of them end up at the site of the assassination attempt.
* DisneyVillainDeath: [[spoiler:The assassin falls off a balcony.]]
* EurekaMoment: When Jo realizes that [[spoiler: Bernard's dying words, "Ambrose Chappell", refer not to a man, but a place: Ambrose ''Chapel''.]]
* EvenEvilHasStandards: Mrs. Drayton has a soft spot for children. She admonishes another woman for being rude to Hank and is against killing him.
* ForeignRemake: This movie provides an Americanization of one of the movies Hitch made while still in England.
* HeKnowsTooMuch: [[ExactlyWhatItSaysOnTheTin Naturally.]]
* [[IHaveYourWife I Have Your Child]]
* IJustShotMarvinInTheFace: [[spoiler:Mr. Drayton's]] gun misfires to kill him.
* InNameOnly: The films to the original book. Hitchcock had the right to adapt some of its stories, but decided all he really wanted was the book's title.
* KarmaHoudini: The ambassador's assistant who hired the Draytons to kill the ambassador in the first place.
* LongSongShortScene: Jo doesn't get to sing "We'll Love Again" in its entirety, and what little viewers do hear from it gets mostly drowned out by the confrontation between Ben and Mr. Drayton.
* MamaBear: Jo
* MistakenForSpies: Bernard mistakes Ben and Jo for the spy couple that he's looking for. The Moroccan police also find it very suspicious that Bernard just happened to stumble into Ben and Jo on a crowded street just before dying.
* MonumentalBattle: At Royal Albert Hall. Creator/AlfredHitchcock seems fond of this trope.
* MusicalTrigger: One specific cymbal clash in the ''Stormcloud Canata'' was the assassin's cue to kill, since that was the loudest moment of the cantata, so it would have masked the sound of the gunshot.
* NotMyLuckyDay: Bernard.
* TheNounWhoVerbed: The title.
* PapaWolf: Ben
* PoliceAreUseless: The Moroccan police are suspicious and unhelpful. When Jo calls the London police saying that they've cornered the kidnappers and her husband is in danger, the head officer is away and his subordinate seems uninterested in helping. He's eventually convinced to send a single squad car, who don't do anything but knock on the door.
* RedHerring: [[spoiler: Ambrose Chappell the taxidermist has nothing to do with the assassination plan, or the kidnapping.]]
* SequelEscalation: Considering the two of them share the same director and largely the same plot, many viewers will be surprised how more down-to-Earth the original was compared to the epic scale of the 1956 remake.
* [[ShesAManInJapan He's a Girl in England]]: Bob and Jill had a kidnapped daughter, while Ben and Jo have a kidnapped son.
* SinisterMinister: Mr. Drayton turns out to be a minister, with his own chapel and congregation, as well as an assassin.
* SmugSnake: Mr. Drayton's one nasty peice of work.
* SoundtrackDissonance: "Qué Será, Será" was written for the film. Its upbeat tune and lyrics were intended as an ironic counterpoint to a story about kidnapping.
* TapOnTheHead: Happens to Ben.
* ThatRemindsMeOfASong: Used as a plot device. Doris Day sings "Qué Será, Será" multiple times, [[spoiler:ultimately using it in a game of Marco Polo so our heroes can find their kidnapped offspring]].
* WomenAreWiser: Played straight many times. Jo becomes ProperlyParanoid of Louis and the Draytons earlier than Ben does, and later throws off the aim of the Prime Minister's assassin. Ben plays a larger role than she does in Hank's rescue, though.
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