Best known for:
Filmography:
The Story of the Pope (1942)
WORK AS:
Screenplay
The Gate of Heaven (1945)
WORK AS:
Screenplay
I dieci comandamenti (1945)
WORK AS:
Writer
Fear No Evil (1945)
WORK AS:
Story, Screenplay
The Testimony (1946)
WORK AS:
Screenplay
A Day in the Life (1946)
WORK AS:
Screenplay, Story
Canto, ma sottovoce... (1946)
WORK AS:
Screenplay
Daniele Cortis (1947)
WORK AS:
Writer
Islands in the Lagoon (1948)
WORK AS:
Writer
The Legend of Saint Ursula (1948)
WORK AS:
Writer
Fabiola (1949)
WORK AS:
Story
Twelve Hours to Live (1950)
WORK AS:
Screenplay
The Last Days of Pompeii (1950)
WORK AS:
Screenplay
Verginità (1951)
WORK AS:
Screenplay
Marito e Moglie (1952)
WORK AS:
Screenplay
The City Stands Trial (1952)
WORK AS:
Co-Writer
The Seven Deadly Sins (1952)
WORK AS:
Screenplay
Fugitive in Trieste (1952)
WORK AS:
Writer
The Vanquished (1953)
WORK AS:
Story, Screenplay
La passeggiata (1953)
WORK AS:
Screenplay
The World Condemns Them (1953)
WORK AS:
Story, Screenplay
The Seducer (1954)
WORK AS:
Idea
The Island Princess (1954)
WORK AS:
Writer
Nero's Mistress (1956)
WORK AS:
Screenplay
This Angry Age (1957)
WORK AS:
Screenplay
Toto and Marcellino (1958)
WORK AS:
Screenplay
General Della Rovere (1959)
6.2WORK AS:
Story, Screenplay
The Law (1959)
WORK AS:
Dialogue
Escape by Night (1960)
WORK AS:
Screenplay
The Angel Wore Red (1960)
WORK AS:
Screenplay
El Cid (1961)
5.5WORK AS:
Additional Writing
Barabbas (1961)
5.6WORK AS:
Writer
Constantine and the Cross (1961)
WORK AS:
Dialogue
Vanina Vanini (1961)
WORK AS:
Screenplay
The Corsican Brothers (1961)
WORK AS:
Screenplay
Viva l'Italia! (1961)
WORK AS:
Screenplay
Seduction Of The South (1961)
WORK AS:
Screenplay
The Mysteries of Paris (1962)
WORK AS:
Writer
The Conjugal Bed (1963)
WORK AS:
Screenplay
Cast the Same Shadow (1963)
WORK AS:
Writer
Vita di Michelangelo (1964)
WORK AS:
Writer
Le inchieste del commissario Maigret (1964)
WORK AS:
Writer, Creator
El señor de La Salle (1964)
WORK AS:
Story
The Magnificent Cuckold (1964)
5.3WORK AS:
Screenplay, Dialogue
Six Days a Week (1965)
WORK AS:
Theatre Play
At Theatre Tonight (1966)
WORK AS:
Author
The Wedding March (1966)
WORK AS:
Story, Screenplay
La Coquine (1968)
WORK AS:
Author
The Brothers Karamazov (1969)
WORK AS:
Writer, Creator
The Modification (1970)
WORK AS:
Dialogue
Ipotesi sulla scomparsa di un fisico atomico (1972)
WORK AS:
Original Story
The Voyage (1974)
WORK AS:
Screenplay
Malombra (1974)
WORK AS:
Screenplay
Malombra (1974)
WORK AS:
Screenplay
Il vizio assurdo (1978)
WORK AS:
Adaptation
From a Far Country (1981)
WORK AS:
Story