Guy Blaché used a Chronophone (left) to combine actors filmed by a Cinématographe (right) lip-syncing to recorded sound played on a disc Phonograph. She documented her filmmaking process of early sound films in this (ironically silent) behind-the-scenes short. © Smithsonian Institution, NMAH-AHB2019q094165 and NMAH-AHB2010q00029