Dial M for Murder

Halliday, Margot & Chief Insp. Hubbard all discover that it was Tony who set up Margot's attempted murder. They find out because Tony grabbed Swann's key and put that key in his wife's purse and the other key (his wife's key) was put back under the staircase cover right after Swann opened the door with it (Tony assumed that he was getting his wife's key from Swann's pocket, because Swann was supposed to put the key back under the staircase cover after he killed Margot, but he got Swann's own key instead). When Tony opens the door with the key that Swann put back under the staircase cover, he sees Halliday, Margot, Insp. Hubbard & Det. Williams and he knows that he has been caught.

Big Evil

Revealing mistake: Just before Anthony Dawson is going to be stabbed to death by Grace Kelly with a pair of scissors, you can see for a very short moment that the scissors are already attached to his back.

More mistakes in Dial M for Murder

Margot Mary Wendice: Oh, there you are. We thought you were never coming. What have you been up to?
Tony Wendice: I'm sorry darling, but the boss came in just as I was leaving.
Margot Mary Wendice: Tony, this is Mark Halliday.
Tony Wendice: Hello Mark.
Mark Halliday: Hello.

More quotes from Dial M for Murder

Trivia: Alfred Hitchcock wanted the film to look as natural as possible, with the camera at eye level with the actors. Since movie cameras were large (especially 3D cameras), Hitch had a small trench built into the soundstage floor, so that the camera lens was, roughly, at eye level.

Colin Schmit
More trivia for Dial M for Murder

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