The File on Thelma Jordon (1950) is a film noir directed by Robert Siodmak for producer Hal Wallis, and starring Barbara Stanwyck and Wendell Corey. The film's narrative shares a striking resemblance to Siodmak's British noir The Rough and the Smooth except the latter is much meaner and gloomier. The screenplay is by Pulitzer Prize winning playwright Ketti Frings.

Thelma Jordon, late one night, shows up in the office of married Assistant DA Cleve Marshall. Before Cleve can stop himself, he and Thelma are involved in an illicit affair. But Thelma is a mysterious woman, and Cleve can't help wondering if she is hiding something. Thelma has a plan up her sleeve that will ruin Corey if his love for her and his own weakness win out. Thelma has a heart and a conscience. She comes to love Cleve, and has concern for his life and his future. Despite her wish that her life could be different, she realizes that she belongs in a lawless world. Written by Anonymous