I Compagni is memorable. When we consider why films move us, affect our lives, indeed, create us to some extent, we think of films such as this. This is not just an artistic triumph for all its filmmakers, but also a moving document of humanity. We take measure of Mastroianni not by his range of performance but by his deep involvement. Like France's Charles Aznavour has his heart in his song, Marcello Mastroianni is fully engaged in his performance. As Professor Sinigaglia in I Compagni, Mastroianni is at his best form. The source of his intensity is not his surface emotion, but the depths of his soul.