George Eastman
- Anthropophagus II
2023 Original Film Writer
- Caldo criminale
2010 Teleplay
- I Will Return
2009 Teleplay
- Io ti assolvo
2008 Writer
- Fuga per la libertà - L'aviatore
2008 Writer
- Christmas Rematch
2004 Stefano Bertoni
- Porno Holocaust - Die Filme des Joe D'Amato
2001 (archive footage)
- Uno bianca
2001 Story
- Tower of the First Born
1998 Story
- Al centro dell'area di rigore
1996 Tulipano
- Rabid Dogs
1995 Trentadue
- Beyond Justice
1992 Writer
- Metamorphosis
1990 Director
- On a Moonlit Night
1989 Zaccarias
- Delirium: Photo of Gioia
1987 Alex
- The Barbarians
1987 Jacko
- Stage Fright
1987 Screenplay
- Polar
1987
- Christmas Present
1986 Stefano Bertoni
- Hands of Steel
1986 Raul Morales
- Detective School Dropouts
1986 Bruno Falcone
- King David
1985 Goliath
- Blastfighter
1984 Tom
- 2019: After the Fall of New York
1983 Big Ape
- Ironmaster
1983 Vood
- Endgame
1983 Kurt Karnak
- Emanuelle's Perverse Outburst
1983 Jacob (archive footage)
- The New Barbarians
1983 One
- 2020 Texas Gladiators
1983 Director
- 1990: The Bronx Warriors
1982 Golem
- Caligula: The Untold Story
1982 Writer
- Porno Holocaust
1981 Writer
- Absurd
1981 Writer
- Erotic Nights of the Living Dead
1980 Screenplay
- Hard Sensation
1980 Writer
- Exotic Malice
1980 Writer
- Anthropophagous
1980 Screenplay
- Terror Express
1980 Writer
- The Great Alligator
1979 Story
- The Exhibitionists
1978 Writer
- Escape from Women's Prison
1978 Writer
- American Fever
1978 Writer
- Emanuelle Around the World
1977 Guru Shanti
- That Strange Desire to Love
1977 Writer
- Sawed-Off Shotgun
1977 Screenplay
- Celestina
1976 Calisto (as Luigi Montefiori)
- Blood and Bullets
1976 Dan Caputo
- House of Pleasure for Women
1976 Simbad (as Luigi Montefiori)
- Keoma
1976 Screenplay
- Dog Lay Afternoon
1976 Writer
- Love Sacrifice
1976 Story
- Vow of Chastity
1976 Story
- Emanuelle and Françoise
1975 Carlo
- The Tiger From the River Kwai
1975 James
- Red Coat
1975 Writer
- Trouble in Istamboel
1974 Johnny Valenti / Merdiven
- Baba Yaga
1973 Arno Treves
- The Three Musketeers of the West
1973 MacAthos
- Scalawag
1973 Don Aragon
- Ben & Charlie
1972 Screenplay
- The Call of the Wild
1972 Black Burton
- Bastard, Go and Kill
1971 Chaco
- Vendetta at Dawn
1971 Doctor George Benton
- The Unholy Four
1970 Writer
- Boot Hill
1969 Baby Doll
- Satyricon
1969 Minotauro
- Bootleggers
1969 McGowan - L'Irlandese
- Django, Prepare a Coffin
1968 Lucas
- The Belle Starr Story
1968 Blackie
- Hate Thy Neighbor
1968 Gary Stevens
- OSS 117 Murder for Sale
1968 Karas
- The Cobra
1967 Crane
- Poker with Pistols
1967 Lucas
- The Last Killer
1967 Ramón / Chico
- Django Kills Softly
1967 Django
- Django Shoots First
1966 Jeff Kluster (uncredited)
- My Name Is Pecos
1966
