A couple vacationing in Morocco with their young son accidentally stumble upon an assassination plot. When the child is kidnapped to ensure their silence, they have to take matters into their own hands to save him.
You can now watch The Man Who Knew Too Much online on the following streaming providers in the United States.
| Sound | Bernard Herrmann | Original Music Composer |
| Art | Henry Bumstead | Art Direction |
| Directing | Alfred Hitchcock | Director |
| Production | Alfred Hitchcock | Producer |
| Production | Herbert Coleman | Producer |
| Crew | Herbert Coleman | Second Unit |
| Camera | Robert Burks | Director of Photography |
| Editing | George Tomasini | Editor |
| Sound | John C. Hammell | Music Editor |
| Writing | Charles Bennett | Author |
| Costume & Make-Up | Edith Head | Costume Design |
| Writing | John Michael Hayes | Screenplay |
| Art | Hal Pereira | Art Direction |
| Art | Sam Comer | Set Decoration |
| Costume & Make-Up | Wally Westmore | Makeup Department Head |
| Production | C.O. Erickson | Unit Production Manager |
| Costume & Make-Up | Virginia Darcy | Hairstylist |
| Art | Arthur Krams | Set Decoration |
| Directing | Howard Joslin | Assistant Director |
| Crew | Ted Mapes | Stunts |
| Production | Hugh Brown | Production Manager |
| Sound | Gene Garvin | Sound Recordist |
| Costume & Make-Up | Phyllis Dalton | Set Costumer |
| Art | Dorothea Holt | Other |
| Directing | Basil Keys | Assistant Director |
| Visual Effects | John P. Fulton | Visual Effects |
| Crew | Angus MacPhail | Additional Writing |
| Production | Edward R. Morse | Casting |
| Production | Frank Caffey | Production Manager |
| Visual Effects | Farciot Edouart | Visual Effects |
| Editing | Sam Vitale | Assistant Editor |
| Writing | D.B. Wyndham-Lewis | Story |
| Lighting | Vic Jones | Gaffer |
| Camera | Neil Binney | First Assistant Camera |
| Crew | Constance Willis | Technical Advisor |
| Crew | Neil Wheeler | Property Master |
| Costume & Make-Up | Dan Greenway | Makeup Artist |
| Production | Tony Regan | Casting |
| Sound | Paul Franz | Sound Recordist |
| Camera | Ken Lobben | Still Photographer |
| Camera | Bobby Greene | Assistant Camera |
| Directing | Ralph Axness | Second Assistant Director |
| Crew | Abdelhaq Chraibi | Technical Advisor |
| Sound | Ray Evans | Songs |
| Sound | Jay Livingston | Songs |
