Roentgenfilm I
Viewers interested in modern Documentary cinema often explore Roentgenfilm I because of its cast, story direction, and audience popularity.
This silent b&w film has intertitles in gothic script (in German). The film features cineradiography of x-rays of eating, drinking and digestion. Solid food is consumed sideways on with a good view of the mouth, then the thorax as food and drink pass down to the stomach. Finally stools are seen forming and dropping through the intestines to the colon.