- Country: UK
- Genres: Drama
- Release: 1948-06-10
- Director: Bernard Knowles
- Writers: Flora Sandstrom , Moie Charles , A.R. Rawlinson , Robert Westerby
- Language: English
- Stars: Margaret Lockwood , Joan Greenwood , Ian Hunter , Dennis Price , Eileen Peel , Guy Middleton , Catherine Lacey , Paul Dupuis , Bryl Wakely , Joan Rees
- Runtime: 90 min
- Awards: 1 nomination
- AKA: Pligomenes kardies (Greece) , El pecado de todos (Mexico) , Symbol des Glücks (Austria) , The White Unicorn , Redenção (Brazil) , Kvinnor och älskare (Sweden) , La strada di ognuno (Italy) , The White Unicorn (United Kingdom) , Bad Sister (United States of America) , Almas Perdidas (Portugal, Portuguese Republic) , The White Unicorn (India) , Symbol des Glücks (Germany)
- Plot: In a home for delinquent girls, the worst offender exchanges reminiscences with the warden.
- IMDB:tt0039989
Bad Sister Cast · · · ALL
Bernard Knowles
Director
Margaret Lockwood
Lucy
Joan Greenwood
Lottie Smith
Ian Hunter
Philip Templar
Dennis Price
Richard Glover
Catherine Lacey
Miss Cater
Paul Dupuis
Paul
Bryl Wakely
Matron of Remand home
Joan Rees
Alice Walters
Lily Kann
Shura
Valentine Dyall
Storton
Julia Lockwood
Norey