He directed "Adelchi", a lesser-known work by Alessandro Manzoni. Gassman brought this production to half a million spectators, crossing Italy with his "Teatro Popolare Itinerante" (a newer edition of the famous "Carro di Tespi"). His productions have included many of the famous authors and playwrights of the 20th century, with repeated returns to the classics of Shakespeare, Dostoyevsky and the Greek tragicians. He also founded a theatre school in Florence (Bottega Teatrale di Firenze), which educated many of the more talented actors of the current generation of Italian thespians.