Watch Sadisflix. Arguably the quintessential film siren of the silent era, Mary Pickford was known as "America's Sweetheart." This documentary explores Pickford's life beyond the screen, as a writer, producer, director and keen businesswoman who co-founded United Artists. Narrated by Whoopi Goldberg and featuring clips of Pickford's movies, the film offers insight from historians, film critics (including Leonard Maltin) and silver-screen stars such as Janet Leigh and Roddy McDowall.