She made her film debut in a minor role in Paolo Cavara's horror film Black Belly of the Tarantula (1970) and subsequently appeared in nearly fifty films, mostly in prominent roles. Domenico Paolella's Story of a Cloistered Nun (1973), an important nunsploitation, marks her official eighteen years old-debut. Then she take 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 Conviene far bene l'amore (U.S. title: Love and Energy) (1975) and Gianluigi Calderone's Appassionata, that definitively gaine her the public acclaim.
Roles in movies like Franco Brusati's To Forget Venice (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 fata 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.