She first starred in Domenico Paolella's Story of a Cloistered Nun (1973), an important nunsploitation, at age eighteen.

She then took part in Il bacio (The kiss), a fantasy drama directed by Mario Lanfranchi, and in erotic comedies such as Salvatore Samperi's La sbandata (1974), in which she plays near Domenico Modugno and Luciana Paluzzi, Luciano Salce's Alla mia cara mamma nel giorno del suo compleanno (1974), Pasquale Festa Campanile's The Sex Machine (U.S. title: Love and Energy) (1975) and Gianluigi Calderone's Appassionata, that definitively gained her the public acclaim.

Roles in movies like Franco Brusati's To Forget Venice[4] (1979), Dario Argento's Inferno (1980), Nino Manfredi's Nudo di donna (1981), and Liliana Cavani's Beyond Obsession (1982) are some of her most known and remarkable dramatic performances but in the beginning of the eighties, Giorgi decides to rejoin comedy.

She's near Adriano Celentano in Mani di velluto and Grand hotel excelsior; for her performance in Carlo Verdone's Borotalco (1982), she won the Nastro d'Argento award and David di Donatello award for Best Actress.

In 2003, Giorgi wrote and directed her first film Uomini & donne, amori & bugie (U.S. title: Love, Lies, Kids... & Dogs), with Ornella Muti.