Directing

1985

… Director

1984

… Director

1982

… Director

1980

… Director

1978		To Be Twenty … Director
1978		Blood and Diamonds … Director

1976		Rulers of the City … Director
1976		Nick the Sting … Director

1975		Kidnap Syndicate … Director
1975		Loaded Guns … Director

1974		Shoot First, Die Later … Director
1974		Italian Sex … Director

1973		The Boss … Director
1973		Seduction … Director

1972		The Italian Connection … Director
1972		Caliber 9 … Director

1971

… Director

1969		Naked Violence … Director
1969		Amarsi male … Director
1969		A Woman on Fire … Director

1968

… Director

1965		For a Few Dollars More … Assistant Director
1965		The Return of Ringo … Assistant Director

Writing

2023

… Original Film Writer

1985

… Screenplay … Writer

1984

… Screenplay

1980

… Screenplay

1978		To Be Twenty … Story … Screenplay
1978		Blood and Diamonds … Screenplay … Story

1976		Rulers of the City … Story … Screenplay
1976		Young, Violent, Dangerous … Screenplay … Story
1976		Live Like a Cop, Die Like a Man … Story … Screenplay

1975		Kidnap Syndicate … Screenplay
1975		Loaded Guns … Screenplay

1974

… Screenplay

1973		The Boss … Screenplay … Story
1973		Seduction … Writer

1972		The Italian Connection … Dialogue … Screenplay … Story
1972		Caliber 9 … Screenplay … Story

1971

… Story … Screenplay

1969		Naked Violence … Screenplay
1969		Amarsi male … Writer
1969		A Woman on Fire … Writer

1968		Gangsters '70 … Writer
1968		God Made Them... I Kill Them … Screenplay
1968		Red Roses for the Fuhrer … Screenplay … Story
1968		Beyond the Law … Screenplay
1968		Tequila Joe … Screenplay … Story
1968		The Ruthless Four … Writer

1967		La lunga sfida … Writer
1967		Sugar Colt … Screenplay
1967		Death Rides Along … Screenplay
1967		Hate for Hate … Writer
1967		Poker with Pistols … Writer
1967		Date for a Murder … Screenplay
1967		Pecos Cleans Up … Screenplay
1967		Wanted … Screenplay
1967		Up the MacGregors … Screenplay … Story
1967		Long Days of Vengeance … Screenplay

1966		Navajo Joe … Screenplay
1966		Johnny Yuma … Screenplay
1966		Massacre Time … Screenplay … Story
1966		Kiss Kiss... Bang Bang … Screenplay … Story
1966		Seven Guns for the MacGregors … Screenplay

1965

… Screenplay

1964

… Screenplay

Acting

2008

as Self

2004		The Origin of the Mala as Himself
2004		Caliber 9: Documentary as Self
2004		Fernando di Leo: La morale del genere as Self

2001

as Self - Filmmaker

1986

1979

1978

as Man Giving Directions

1976

as Film Director in Front of Police Station (uncredited)

1974

as giornalista TV (uncredited)

1973

as Cocchi's Henchman (uncredited)

1969

as Man at House of Prostitution

1965		For a Few Dollars More as Cigar Smoking Card Player (uncredited)
1965		The Return of Ringo as Fuentes Henchman

Crew

1966

… Additional Writing

1965

… Additional Writing