Writing

1976

… Writer

1975		School of Death … Story
1975		Si quieres vivir... dispara … Writer

1970

… Writer

1969		Twenty Thousand Dollars for Seven … Story … Screenplay
1969		Hell Commandos … Writer
1969		A Bullet for Rommel … Story … Screenplay

1968		Cuidado con las señoras … Writer
1968		Seven Into Hell … Writer

1967		A Nun at the Crossroads … Screenplay
1967		The Vengeance of Pancho Villa … Writer

1966		A Few Dollars for Django … Screenplay … Story
1966		Two Guns for Two Twins … Story

1965

… Screenplay

1964		Hour of Death … Screenplay
1964		Black Angel of the Mississippi … Writer

1963

… Story … Screenplay

1961

… Screenplay

1958		The Tenant … Screenplay
1958		Habanera … Writer

1956

… Writer