In 1821, in Cinema, he records the cinematic representations of the Revolution from the first decades of the 20th century. until the present day. Despite the fact that the Revolution of 1821 constitutes the founding act of the modern Greek state, as a subject matter it is underrepresented in national film production. This is one of the points on which the research looks, which simultaneously examines the periods of concentration of films on the subject of the Revolution or, respectively, the periods of its collective silence. The purpose of the documentary is to study the ideological discourse and the cinematic language of the films with the theme of 1821, in order to highlight the function of the cinema as a carrier of Public History and as a factor in shaping the collective historical consciousness.