It Happened Only Once () 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.
A veteran 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.