un film prodotto da Mario Cecchi Gori per la Fairfilm, Incei Film, Sancro Film ; soggetto e sceneggiatura di Dino Risi, Ettore Scola, Ruggero Maccari ; un film di Dino Risi
a production of Florentine Films and WETA, Washington, DC ; a film by Ken Burns & Lynn Novick ; directed by Ken Burns & Lynn Novick ; written by Geoffrey C. Ward ; produced by Sarah Botstein, Lynn Novick, & Ken Burns