Forty-year-old Dalle - whose real name is Beatrice Cabarrou - wed an unidentified convict in the Hermitage prison in Brest, the western French town where she was born, according to local mayor Renee Milin.
Dalle’s was one of two marriages held on Monday in the prison’s visitor room, Milin said, adding that Dalle was emotional and acted like a normal bride, even filling out the necessary papers at the town hall herself.
Prison officials declined to comment, other than to say that marriages are not uncommon at the detention facility.
Dalle continues to land film and television roles, but has failed to attract the attention given her performance in Betty Blue.
She is no stranger to the other side of the law herself, having been arrested in Miami in 1999 for cocaine possession and in 1991 for stealing jewels from a Paris boutique by stuffing them down her thigh-length boots. Dalle was convicted of shoplifting in 1992.
A 1996 conviction for cocaine and heroin possession in France was removed from the books so she could continue to work in the United States. She was also fined for assaulting a Paris meter maid in 2000.
She was previously married to Joey Starr, a French rapper with a police record for violence.