Career
She was sometimes credited as Liliane Betti. Fellini referred to her as "her boss" and as "the little goddess of ideas", and Betti was a collaborator, a casting director, a script supervisor and a second unit director for many of his films until 1980. As a screenwriter, she also often collaborated with Marco Ferreri and Enrico Oldoini.
In 1991 she was nominated at the Award for best screenplay for Ferreri"s The House of Smiles.