It Happened Only Once (German: Das gab's nur einmal) is a 1958 West German drama film directed by Géza von Bolváry and starring Hans Albers, Helga Martin, and Stanislav Ledinek. It was shot at the Tempelhof Studios in West Berlin. An experienced star recounts the history of the film industry to an aspiring young actress showing a compilation of clips from a variety of German films, many of them featuring Albers himself.