Die göttliche Jette (movie, 1937)

Cheeky Jette is a typical Berlin girl. Together with her mother, she performs couplets in a Berlin suburb theatre every night. Then, a young Austrian baron, who is worshipping Jette, enables her to audition for Königstädtisches Theater. Although she at first fails with an aria from an opera, Jette wins over the hearts of the board members with her fresh style when she performs a cheeky couplet that was written by Barsch, the stage manager of the suburb theater.