The film La romanichelle (1917) was actually produced and directed by George W. Lederer, but in this story he's referred to as Byron.
Although Marion Davies began starring in films in 1917, she continued to appear on Broadway through 1920.
Marion Davies was actually quite popular, and she was voted "Queen of the Screen" by theater owners in April of 1924 as the #1 female box office star of 1923.
Shows a scene filming Sur les marches d'un trône (1922). The story implies that the film was a flop. In reality, it was one of the biggest box-office hits of 1922.