He suggested Don's girlfriend and ambitious actress, Kathy, to dub her singing voice behind the scenes and lip sync for Lina. Subsequently, at the end of the film, Don, Cosmo and RF, the men behind the curtain, chose to reveal the truth about the dubbing of Lina's voice. One of the many reasons Lina deserved this publicly humiliating outcome was her envy of Don and Kathy. Another reason was a direct result of the fact that she had approached RF with the idea of ​​pursuing Monumental Pictures. She ordered that unless he allowed Kathy to continue using her voice without permission, she would take legal action. Unfortunately for RF, he had to accept her requests and oblige her through his written contact. Therefore, raising the curtain, Lina's lip sync revealed the true beauty of the beast, and credit was given where it was due, to Kathy. Embarrassed by the revelation of the truth, Lina and Kathy fled the scene. However, Don proudly announced to the audience that Kathy was "the real star of the film." The film ended later, with Kathy and Don happily kissing in front of their new billboard for the new musical film, Singin' in the.