The Legend of Lylah Clare

The Legend of Lylah Clare is a 1968 American drama film released by MetroGoldwynMayer and directed by Robert Aldrich. The film stars Peter Finch, Kim Novak in multiple roles, Ernest Borgnine, Michael Murphy, and Valentina Cortese. The film was based on a 1962 DuPont Show of the Week TV drama cowritten by Wild in the Streets creator Robert Thom.

Elsa Brinkmann Novak, is hired by producer Barney Sheean Borgnine, who wishes to make a film about the life of 1930s movie star Lylah Clare also Novak.Sheenan hires Lewis Zarkan Finch, Lylas former husband, to direct the film. Zarkan has to work with the talentless Elsa so she can convincingly play the role of Lyla. ........

Source: Wikipedia