Dellera was launched by film director Tinto Brass, who chose her as main actress in the erotic movie Capriccio (1987); the film was a great success making her one of the most popular actresses in Italy at the time.
Federico Fellini chose her for the role of the fairy for a film based on Collodi's Pinocchio, opposite Roberto Benigni in the main role, but the film was never made due to the director's sudden death.
She was shot by world-class photographers such as Helmut Newton, Dominique Issermann, Greg Gorman, Michel Comte as well as others.