People on Sunday (German: Menschen am Sonntag) is a 1930 German silent drama film directed by Robert Siodmak and Edgar G. Ulmer from a screenplay by Billy Wilder. The film follows the lives of a group of residents of Berlin on a summer's day during the interwar period. Hailed as a work of genius, it is a pivotal film not only in the development of German cinema but also of Hollywood. In addition to the directors and Wilder, the film features the talents of Curt Siodmak (story), Fred Zinnemann (cinematography) and Eugen Schüfftan, who had developed the Schüfftan process for Metropolis three years earlier.