Alessandro Blasetti - Peccato che sia una canaglia AKA Too Bad She's Bad (1954)

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Synopsis:

Rome Cabbie Paolo (Marcello Mastroianni) almost gets his cab stolen by two punks in the company of knockout Italiana Lina Stroppiani (Sophia Loren). Paolo doesn't know whether he's trying to date Lina or get her arrested, as he's continually confused by the scrambled logic of her arguments. Lina, her clever father (Vittorio De Sica) and the rest of her family are master pickpockets and thieves, but the upstanding Paolo is the last to know.

Quote:

This off-the-wall "commedia all'italiana" pairs Sophia Loren and Marcello Mastroianni for the very first time, and it is a delightful piece of nonsense from beginning to end.

Peccato Che Sia una Canaglia marked the first time Sophia Loren (then only twenty years old) was co-starred with her frequent screen partner Marcello Mastroianni; they would eventually make thirteen pictures together.