Federico Fellini	...	(Réalisateur)
Federico Fellini, Ennio Flaiano	...	(Scénariste)
Bruno Agostini	...	Il segretario di produzione
Anouk Aimée	...	Luisa Anselmi (as Anouk Aimee)
Guido Alberti	...	Pace, il produttore
Caterina Boratto	...	La signora misteriosa
Claudia Cardinale	...	Claudia
Marcello Mastroianni	...	Guido Anselmi
Sandra Milo	...	Carla
Rossella Falk	...	Rossella
Barbara Steele	...	Gloria Morin
Madeleine LeBeau	...	Madeleine, l'attrice francese (as Madeleine Lebeau)
Eddra Gale	...	La Saraghina (as Edra Gale)
Mario Conocchia	...	Conocchia, il direttore di produzione
Cesarino Miceli Picardi	...	Cesarino, l'ispettore di produzione
Jean Rougeul	...	Carini, il critico cinematografico
Mario Pisu	...	Mario Mezzabotta

Résumé: Guido is a film director, trying to relax after his last big hit. He can't get a moments peace, however, with the people who have worked with him in the past constantly looking for more work. He wrestles with his conscience, but is unable to come up with a new idea. While thinking, he starts to recall major happenings in his life, and all the women he has loved and left. An autobiographical film of Fellini, about the trials and tribulations of film making.