The Perils of Pauline is a musical comedy depicting the semi-fictionalized life of a star of silent serials. Betty Hutton stars as Pearl White as she leaves her factory job to join a touring theatrical troupe, then bolts to Hollywood where she lands the leading role in the 1914 serial, The Perils of Pauline.
I find it interesting that IMDb voters prefer the serial to the Technicolor version, which Leonard Maltin gave 3 (of 4) stars, calling it a “lively, entertaining musical-comedy” with a “colorful atmosphere” and some actual silent-film veterans. Personally, I’m grateful any time there’s something playful and fun to watch in the Internet Archive Top 100.