Filmzauber, literally 'Film Magic', is a Posse mit Gesang (a kind of popular musical drama) in four scenes by Walter Kollo and Willy Bredschneider, with a German libretto by Rudolf Bernauer and Rudolph Schanzer.
An English version, The Girl on the Film, translated and adapted by James T. Tanner with additional music by Albert Szirmai, premiered in London in 1913 and was later performed in New York and elsewhere.
A farce, with several subplots, centering on the efforts by the idolized silent film producer-actor Adalbert Musenfett to cast himself as Napoleon in a drama set during the Battle of Leipzig.
Pretty Winifred, the daughter of gruff General Fitzgibbon, in order to be near him, runs away from home and dresses as a boy (Freddy) to obtain a part in one of Max's films.
Winifred, still supposed to be a boy, then plays the Signora's part, and Max does not discover the fact that she is a girl until after the film has been shown at an Army League soiree.