Question: In the screenplay Sweethearts, Victor Herbert's play was was used. What type of performance was this?
Sentence (from "Sweethearts (1938 film)"): The screenplay, by Dorothy Parker and Alan Campbell, uses the “play within a play” device: a contemporary Broadway production of the 1913 Victor Herbert operetta is the setting for another pair of sweethearts, the stars of the show.
Relevant evidence: Yes