 La madre2013 · Screenplay | Screenplay |
 Tulpa - Demon of Desire2012 · Screenplay | Screenplay |
 Roma nuda2011 · Writer | Writer |
 First Happiness2011 · Writer | Writer |
 Bastardi2008 · Screenplay | Screenplay |
 Blood of the Losers2008 · Screenplay | Screenplay |
 Alex the Ram2000 · Screenplay, Writer | Screenplay, Writer |
 Come quando fuori piove1998 · Writer | Writer |
 Fable1996 · Screenplay | Screenplay |
 The Angel with the Gun1992 · Screenplay | Screenplay |
 Circle of Fear1992 · Screenplay | Screenplay |
 Soccer Shoot-Out1991 · Writer | Writer |
 Killer Crocodile 21990 · Actor, Screenplay | Actor, Screenplay |
 Soldier of Fortune1990 · Writer | Writer |
 School of Fear1989 · Screenplay | Screenplay |
 Killer Crocodile1989 · Screenplay | Screenplay |
 Brothers in War1989 · Writer | Writer |
 Afghanistan: The Last War Bus1989 · Writer | Writer |
 The Prince of Terror1989 · Screenplay | Screenplay |
 Cy-Warrior1989 · Writer | Writer |
 Dinner with a Vampire1988 · Screenplay | Screenplay |
 Until Death1988 · Screenplay | Screenplay |
 Raiders of the Magic Ivory1988 · Writer | Writer |
 The Ogre1988 · Writer | Writer |
 Karate Warrior 21988 · Writer | Writer |
 Bye Bye Vietnam1988 · Writer | Writer |
 Thunder 31988 · Screenplay | Screenplay |
 Rat Man1988 · Screenplay | Screenplay |
 Graveyard Disturbance1988 · Screenplay, Writer | Screenplay, Writer |
 The Overthrow1987 · Screenplay | Screenplay |
 Delta Force Commando1987 · Writer | Writer |
 Karate Warrior1987 · Writer | Writer |
 Specters1987 · Screenplay | Screenplay |
 Thunder 21987 · Screenplay | Screenplay |
 Body Count1986 · Screenplay | Screenplay |
 Demons 21986 · Writer | Writer |
 You'll Die at Midnight1986 · Screenplay | Screenplay |
 Hands of Steel1986 · Screenplay | Screenplay |
 Demons1985 · Screenplay | Screenplay |
 The Devil in the Hills1985 · Screenplay | Screenplay |
 Cut and Run1985 · Screenplay | Screenplay |
 Monster Shark1984 · Screenplay | Screenplay |
 Deadly Impact1984 · Writer | Writer |
 Warriors of the Year 20721984 · Screenplay | Screenplay |
 Thunder1983 · Screenplay | Screenplay |
 Exterminators of the Year 30001983 · Screenplay | Screenplay |
 A Blade in the Dark1983 · Writer | Writer |
 Ironmaster1983 · Screenplay | Screenplay |
 Amityville II: The Possession1982 · Writer | Writer |
 1990: The Bronx Warriors1982 · Screenplay | Screenplay |
 Manhattan Baby1982 · Screenplay | Screenplay |
 Blue Island1982 · Writer | Writer |
 The New York Ripper1982 · Screenplay | Screenplay |
 Pierino the Pest to the Rescue1982 · Screenplay | Screenplay |
 Pierino il fichissimo1981 · Writer | Writer |
 The House by the Cemetery1981 · Screenplay | Screenplay |
 The Beyond1981 · Mob Member (uncredited), Screenplay | Mob Member (uncredited), Screenplay |
 The Maid Seduces the Cowards1980 · Writer | Writer |
 City of the Living Dead1980 · Screenplay | Screenplay |
 The Last Hunter1980 · Screenplay | Screenplay |
 Cannibal Apocalypse1980 · Screenplay | Screenplay |
 Scusi, lei è normale?1979 · Screenplay | Screenplay |
 Shock1977 · Screenplay | Screenplay |
 The Psychic1977 · Screenplay | Screenplay |
 A Man Called Magnum1977 · Screenplay | Screenplay |
 Stunt Squad1977 · Screenplay | Screenplay |
 Destruction Force1977 · Writer | Writer |
 The Cynic, the Rat & the Fist1977 · Screenplay | Screenplay |
 Cross Shot1976 · Screenplay | Screenplay |
 Mark Strikes Again1976 · Writer | Writer |
 Rome, Armed to the Teeth1976 · Writer, Screenplay | Writer, Screenplay |
 Free Hand for a Tough Cop1976 · Writer | Writer |
 Mark Shoots First1975 · Screenplay | Screenplay |
 Blood, Sweat and Fear1975 · Screenplay | Screenplay |
 Manhunt in the City1975 · Journalist (uncredited), Screenplay | Journalist (uncredited), Screenplay |
 Emergency Squad1974 · Screenplay | Screenplay |
