La belle Russe (1919)

In this film, her next-to-last picture for Fox, it was Theda Bara's turn to tackle a double role. Bara's characters are twin sisters La Belle Russe, the wicked one, and Fleurette, the nice one. They're Parisian dancers, and Fleurette marries Philip Sackton (Warburton Gamble). However, Sackton is a member of Britain's snooty aristocracy, and his family disinherits him.