By Erin BlakemoreOriginal Source: history.comDebbie Reynolds had just landed the role of a lifetime—and she was exhausted. The 19-year-old had been cast as Kathy Selden, the female lead in Singin’ in the Rain, and she had big shoes to fill. Her partner was none other than the very seasoned, astonishingly talented Gene Kelly, and Reynolds was expected to match him step to step.Reynolds was up to the challenge, but the grueling rehearsal schedule and pressure soon began destroying her health. When her doctor advised her to take a week off of work, MGM studio chief Arthur Freed told her to go to a different doctor.In her 2013 memoir, Reynolds recalled how Freed instructed her to get “vitamin shots” from his doctor. “These were possibly the same ‘vitamins’ that ruined Judy Garland...click here to continue reading