by Giovanni Targioni-Tozzetti and Guido Menasci after the short story by Giovanni Verga ; music by Pietro Mascagni ; a Teatro Alla Scala production by Giorgio Strehler ; a production of UNITEL Film- und Fernseh- produktionsgesellschaft. Pagliacci : drama in a prologue and two acts / by Ruggero Leoncavallo ; libretto by Ruggero Leoncavallo ; from a Teatro Alla Scala production by Paul Hagar ; a production of UNITEL Film- und Fernseh- produktionsgesellschaft