Asta, mein Engelchen (1981)

Old Otto Gratzick is a porter at DEFA and a great admirer of Asta Nielsen. When the famous actor Hermann Gschwindner dies shortly before the end of his film, the director is looking for a double for the final scenes and discovers Otto in the movie theater, who has just been moved by Asta again. Otto takes on the task. He also places a marriage advertisement looking for a woman who resembles Asta. The first date with Astrid, who does indeed look like Asta, is a flop. Otto falls asleep. He tries again with her - as Hermann Gschwindner - and is successful. He is recognized in a hotel bar and asked to perform a song. Everyone, including Astrid, is entranced. After a few complications, his real identity is revealed - Astrid had also done a lot of work to look like Asta.