[1] Born in Quacchio, a town east of Ferrara, Benetti graduated from the Istituto Magistrale and then landed in Rome, where she was accepted at the Centro Sperimentale di Cinematografia.

In 1943, she played in Mario Soldati's Quartieri alti with Massimo Serato and Vittorio Sanipoli and in Marc Allégret's Les Petites du quai aux fleurs with Bernard Blier and Gérard Philipe.

In 1946, she appeared with Fosco Giachetti in Il sole di Montecassino and with Eduardo and Titina De Filippo in Uno tra la folla.

In 1947, she appeared in Goffredo Alessandrini's Furia, alongside Rossano Brazzi, in Giorgio Ferroni's Tombolo, paradiso nero with Lucio De Caro and in Manù il contrabbandiere with André Cayatte.

She played a teacher in 1955's Eighteen Year Olds (a remake of Schoolgirl Diary) and an older woman in 1957's A vent'anni è sempre festa, after which she retired from cinema.