Luciana Paluzzi was 15 in Three Coins in the Fountain when she played the character 'Angela Bianchi (uncredited)'.
That was over 70 years ago in 1954.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 86, and has starred in 64 movies in total, 63 of those since Three Coins in the Fountain was released.
In Three Coins in the Fountain, I think Luciana Paluzzi looks: