The documentary “Maria Callas: La Divina” was shown yesterday at the Institute. Its screening was preceded by a brilliant lecture by Jesse Rosenberg, Associate Professor of Musicology at Northwestern University, who gave an extensive introduction about the American born Greek soprano. Professor Rosenberg talked about her personal and artistic life while expressing his admiration for her musical and dramatic talent. On the occasion, copies of the book "The Young Maria Callas,"edited by Bruno Tosi and published by Guernica Editions with the support of the Italian Cultural Institutes in North America, were freely given to the large audience present at the event.