I was able to connect with Lyn Wilde of the Wilde Twins, who appears in this movie. She and her sister had a twin act for a few years but Lyn stayed in show business for six more films. She can be seen in Singin' in the Rain as the tennis player in the "Beautiful Girl" number. Here's an article I wrote about Lyn & Lee Wilde and my time with Lyn. She passed away in 2016. Lyn & Lee Wilde Article