In Sunset Boulevard, Silent Film star Norma Desmond summed the era up admirably: "We didn't need dialogue. We had faces". The silent film era was much more than cinema's warm-up for the talkies. It produced masterpieces that we still watch with awe today on DVD: the classic comic genius of Keaton and Chaplin; the inventive spectacle of movies like Metropolis, the heartbreak of Sunrise. This is film that remains powerful and thrilling.