Another of Raoul Walsh's "lost" silent films, Lucky Lady stars Gretta Niessen as the title character. Convent-bred to assume her position of nobility when the time comes, Princess Antoinette (Niessen) plays hooky from school one day to attend a theatrical performance. Here she meets a handsome young American (William Collier Jr.), and it's love at first sight. Meanwhile, in the Princess' home country, the Prime Minister (Marc MacDermott) plots to quell a rebellion by arranging a marriage between Antoinette and the Grand Duke (Lionel Barrymore). Assuming that the young American is a spy for the rebels, the Prime Minister does his best to break up the Princess' romance, but love wins out over politics in the end.
by Hal Erickson synopsis