Photograph of Marc Blitzstein in costume during the shooting of film sequences for the Mercury Theatre production "Too Much Johnson" Feature story is titled "Metro-Goldwyn-Mercury" (no author credit) Photo caption reads as follows: Several celebrities appear in the film, playing low types of the period. Here is the author of "The Cradle Will Rock", Marc Blitzstein, who, although anonymous, insists that he is portraying a French barber. Mr. Blitzstein, we think, is not only an outstanding musician and composer, but an excellent comedian as well. The most energetic of the extras, he appears practically all of the time.