According to the folks at the 1947 Project:

this May 1946 night time process shot through Downtown Los Angeles was filmed by Columbia for the Rita Hayworth vehicle Down to Earth. In the picture, the actress portrays the ancient Greek Muse Terpsichore, who visits 20th century America to torment the Broadway producer who dares put on a show portraying the muses as man-crazy sluts, and Terpsichore herself as “just an ordinary dame.”