Old-timey musicals have the most insane choreography

Before CGI, Photoshop, or other image-altering programs, Hollywood had to rely on good, old fashioned talent to make movies. In the 1940s and 50s, that meant movie musicals starring professional dancers, acrobats, and contortionists -- who could also act. For stars like Gene Kelly, Debbie Reynolds, and Cyd Charisse, it was a good time to be an actor-singer-dancer triple threat. Story by Aly Weisman and editing by Andrew Fowler