Oh MY!!! Who would have thought? Nico was an extra in a Mario Lanza movie! I know about Mario Lanza because, when I was a kid, I had this uncle who was a really big fan of him ("The italian Frank Sinatra").... Yes, as IcePrincess says, you really have a talent to find rarities... I am impressed!
This makes me wonder in how many others movies Nico might have participated in Europe? From "Nico Icon", her aunt tells that Nico was in great demand all over Europe when she started as a model and actress in "La Dolce Vita". She said she was always working and making a lot of money back then...