Sometimes when you watch Sophia Loren's Hollywood efforts, she can look a bit unnatural - forced, even. Put her in front of Vittorio De Sica and pair her with Marcello Mastroianni, though, and she is in her element - and that makes for a really enjoyable comedy drama here. It's all set in Naples after the end of WWII when the wealthy "Don Domenico" alights on the seventeen year old, down at heel, hooker "Filumena" and over the years she becomes his mistress whom he supports comfortably. His eyes are set on a younger women for marriage and when "Filumena" discovers this she plays the ultimate…