The Unpardonable Sin (1919)

His Supreme Moment

John Douglas, a down-on-his-luck engineer, takes his sweetheart, Sara Deeping, to a play starring Carla King, and he falls in love with the actress.

Footlights and Shadows

A fortune-hunting follies star Gloria Dawn ( Olive Thomas ), begins to question her engagement to wealthy Peter Shaw after meeting an amnesiac young man who stumbles into her apartment one night. The doctor instructs that he not be moved, so Gloria nurses the stranger back to health, although his memory fails to return. Gloria falls in love with her patient and, upon discovering that he is millionaire sportsman Jerry O'Farrell, rushes home to restore his identity, only to find that he has gone. Amnesia continues to plague Jerry, and he soon forgets both Gloria's name and address. While he is attending a show at the follies, a fire breaks out, and Gloria, recognizing her lover in the audience, rushes to save him. Meanwhile, Shaw, who has discovered Gloria's feelings for Jerry, accosts her. Jerry, who has finally regained his memory, intercedes and rescues Gloria, and the two fall in love.

Rose-Marie

Sergeant Malone of the Mounties and effeminate Etienne Doray are both in love with Rose-Marie, but she doesn't light up until soldier of fortune Jim Kenyon drifts into the post. Soon Jim is accused of murder but he escapes.

The Forward Pass

Marty Reid, the star quarterback at Sanford College, is constantly singled out by the opposition for punishment, and he swears to his pal, Honey Smith, and to Coach Wilson that he will quit the game forever. Ed Kirby, who dislikes Reid, calls him yellow, and Wilson gets Patricia Carlyle, the college vamp, to induce Reid to play. At a sorority dance, where only football players can cut in, Kirby persecutes Reid by dancing with Pat, and as a result Reid does apply to play in the game.

The World's Applause

Corinne d'Alys (Daniels) achieves sudden success on the stage and among her many admirers is noted artist Robert Townsend (Menjou). Robert is married to Elsa (Williams), the sister of John Elliott (Stone), the producer responsible for Corinne's rise to fame. The young woman's head is turned by the praise she receives and, despite John's warning against Robert, she permits the latter to paint her portrait and pay her a good deal of attention. John himself loves Corinne and believes that wisdom will come to her with time.