Conocchia made his film debut in 1960 with Federico Fellini 's La Dolce Vita , playing the part of a lawyer.
Three years later, he worked again with Fellini, for 8½ , a film where he had a good part, that of the production inspector at the service of the protagonist Marcello Mastroianni .
In the film he was dubbed by Mario Carotenuto .
In 1965 he took part in the film Giulietta degli spiriti , again in the role of a lawyer.
Seven years later he lent his voice to Gore Vidal , for the film Roma .
The last film in which he took part was Ginger and Fred .
He was the father of the voice actress Luisella Visconti , who died prematurely in 1967.
Middle-aged Giulietta grows suspicious of her husband, Giorgio, when his behavior grows increasingly questionable. One night when Giorgio initiates a seance amongst his friends, Giulietta gets in touch with spirits and learns more about herself and her painful past. Slightly skeptical, but intrigued, she visits a mystic who gives her more information -- and nudges her toward the realization that her husband is indeed a philanderer.
Guido Anselmi, a film director, finds himself creatively barren at the peak of his career. Urged by his doctors to rest, Anselmi heads for a luxurious resort, but a sorry group gathers—his producer, staff, actors, wife, mistress, and relatives—each one begging him to get on with the show. In retreat from their dependency, he fantasizes about past women and dreams of his childhood.