Visible crew/equipment: Cary Grant is crouching in his bunk bed in the train. The lights of the studio get reflected on his broken sunglasses when he shows them to Eve.
Visible crew/equipment: When Cary Grant and his film-mother enter the elevator at the Plaza this is filmed through a glass-door and you can see the reflection of a crewmember in a white shirt who is crouching below or next to the camera.
Visible crew/equipment: Right before Thornhill gets shot by Eve, he's talking to Vandamm at the table. The camera moves backward. You can see its shadow on Thornhill's arm.
Visible crew/equipment: When Thornhill exits the phone booth 6 stage lights are reflected on the glass door.
Visible crew/equipment: When the crop duster and the truck are about to explode and the truck drivers run away, one can tell it's not Cary Grant watching the havoc but his stunt double because of his rounder face and slightly different hairstyle. Also confirmed by actress Eve Saint-Marie.
Chosen answer: The original title for the movie was "In a Northwesterly Direction", as it was originally detailing the flight of a man from New York to Alaska, according to writer Earnest Lehman. According to Alfred Hitchcock, however, he took the title from a line in Hamlet, another work of fiction that is concerned with the slippery nature of reality. It is also worth noting that North by Northwest is not a direction on the compass at all. The nearest to it would be Northwest by North.
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