That Dangerous Age

That Dangerous Age
If This Be Sin
That Dangerous Age; If This Be Sin
	United States Theatrical release poster
Directed by	Gregory Ratoff
Written by	Gene Markey
Based on	a story by Ben Simcoe based on the play Autumn by Margaret Kennedy and Ilya Surguchev
Produced by	Gregory Ratoff
Starring	Myrna Loy ; Peggy Cummins ; Richard Greene ; Roger Livesey
Cinematography	Georges Périnal ; Anchise Brizzi (Italian sequences)
Edited by	Gerald Turney-Smith
Music by	Mischa Spoliansky
Production; company	London Film Productions
Distributed by	British Lion Films
Release date	5 September 1949;
Running time	98 minutes
Country	United Kingdom
Language	English
Box office	£176,577 (UK)

That Dangerous Age is a 1949 British romance film directed by Gregory Ratoff and starring Myrna Loy, Roger Livesey and Peggy Cummins.^[2] It was adapted from the play Autumn by Margaret Kennedy and Ilya Surguchev. The film was released under the alternative title of If This Be Sin in the United States.^[3] It was shot at Shepperton Studios and on location in London and Capri. The film's sets were designed by the art director Andrej Andrejew.

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Plot