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The Dark Mirror (1946)

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A woman suspected of murdering her doctor boyfriend has an identical twin sister. When both twins have an alibi for the night of the murder, a psychiatrist is called in to assist a ... See full summary »



(written for the screen by), (original story)
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Title: The Dark Mirror (1946)

The Dark Mirror (1946) on IMDb 7.2/10

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Nominated for 1 Oscar. See more awards »


Complete credited cast:
Terry / Ruth Collins
Dr. Scott Elliott
Lt. Stevenson
Charles Evans ...
Dist. Atty. Girard
Garry Owen ...
Franklin (as Gary Owen)
Lela Bliss ...
Mrs. Didriksen
Lester Allen ...
George Benson


A woman suspected of murdering her doctor boyfriend has an identical twin sister. When both twins have an alibi for the night of the murder, a psychiatrist is called in to assist a detective in solving the case. Through a series of tests, he discovers which twin actually committed the crime and in the course of his investigation he falls in love with the normal twin. Written by Neil Doyle <>

Plot Summary | Plot Synopsis


Twins! One who loves... and one who loves to kill! See more »


Approved | See all certifications »

Parents Guide:





Release Date:

18 October 1946 (USA)  »

Also Known As:

The Dark Mirror  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:

(Western Electric Recording)

Aspect Ratio:

1.37 : 1
See  »

Did You Know?


"Screen Director's Playhouse" broadcast a 30 minute radio adaptation of the movie on March 31, 1950 with Olivia de Havilland reprising her film role. See more »


When Dr. Elliott is sitting on the leather couch in his apartment talking to Lt. Stevenson, a moving shadow (from something above like a boom mic) appears on the lamp behind the doctor. See more »


Dr. Scott Elliott: Not even nature can duplicate character, not even in twins.
See more »


Referenced in I, Robot (2004) See more »


Frankie & Johnny
Music by Hughie Cannon (uncredited)
Played on the cigarette music-box in the Collins sisters' apartment
See more »

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User Reviews

Intrigue, suspense, and murder in this classic of noir cinema
4 February 2009 | by See all my reviews

A murder is committed, an identical twin sisters, Ruth and Terry(Olivia de Havilland) are suspects. A prominent psychologist(Lew Ayres) and a detective(Thomas Mitchell) investigate the deeds to determine which good-bad siblings killed the mysterious corpse, because one of whom is a psycho and nutty woman.

This noir film contains suspense, tensions, psychological drama, love story and is quite entertaining. Excellent actress Olivia De Havilland gives a completely convincing tour-de-force as a dual role as good and bad girl . Good and fine secondary cast as Lew Ayres, Thomas Mitchell, Gary Owen and Richard Long. Startling finale climax with an amazing plot twist. Nice special effects perfectly adapted ,enabling De Havilland to play two diverse characters , FX are stunningly made by Deveraux Jennins. This psychological thriller has an interesting screenplay brilliantly written by Nunnally Johnson, also producer. Atmospheric musical score by Dimitri Tiomkin based on classic music and evocative cinematography with lights and shades by Milton Krasner. The motion picture is well directed by German director Robert Siodmak who realized his best films during the 40s. His movies reflect a world of desperation, of dark, of threat and killing . The Siodmak's best films are¨ Phantom Lady¨, ¨The spiral staircase¨ and ¨Criss Cross and The killers¨-both starred by Burt Lancaster-,¨ now acknowledged as a classic noir films in which Robert Siodmak set the pattern of the rest of his Hollywood's work, and of course ¨Dark mirror¨.

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