That Lady in Ermine (1948)

Director: Otto Preminger, Ernst Lubitsch
Cast: Betty Grable, Cesar Romero, Douglas Fairbanks Jr., Harry Davenport, Reginald Gardiner, Virginia Campbell, Walter Abel

Synopsis:

Circa 1861, Angelina, ruling countess of an Italian principality, is at a loss when invaded by a Hungarian army. Her lookalike ancestress Francesca, who saved a similar situation 300 years before, comes to life from a portrait to help her descendant. Complicating factor: the newlywed countess feels strangely drawn to the handsome invader…