Silent films were a popular form of entertainment on Earth in the early 20th century. They involved miming with no sound. Two of the most popular figures in the medium were Buster Keaton and Charlie Chaplin. Chaplin impersonators like Archie Maplin made silent films as well. Other people involved in making silent films in Hollywood included Matthew Finnegan, Emily Winter, Leo Miller and Maximilian Love. (COMIC: Silver Scream)
The renegade Time Lady Iris Wildthyme worked as an extra in several silent films, including one about Boudica. (AUDIO: The Elixir of Doom)
The Twelfth Doctor and Clara Oswald intended to watch a silent film viewing at the Cinema Paradoxo, only to discover it was a film acted out by Silents. (COMIC: Silver Screenesis)