Writing

1982

… Writer

1977

… Writer

1976

… Writer

1973

… Writer

1972		Night of the Devils … Screenplay
1972		El hombre que vino del odio … Screenplay

1971		The Legend of Frenchie King … Story
1971		El Bandido Malpelo … Writer
1971		The Masked Thief … Story
1971		At the End of the Rainbow … Screenplay … Story
1971		The Case of the Scorpion's Tail … Screenplay
1971		Human Cobras … Story … Screenplay
1971		The Strange Vice of Mrs Wardh … Original Story … Screenplay

1970		Light the Fuse… Sartana Is Coming … Story … Screenplay
1970		The Tigers of Mompracem … Screenplay
1970		Apocalypse Joe … Story … Screenplay
1970		Mátalo! … Writer

1969		Battle of the Commandos … Screenplay
1969		They Paid with Bullets: Chicago 1929 … Story … Screenplay
1969		Death on High Mountain … Screenplay

1968		The Mark of Kriminal … Screenplay
1968		A Gun for One Hundred Graves … Story
1968		One by One … Story
1968		Satanik … Story … Screenplay
1968		One Step to Hell … Story … Screenplay
1968		Taste of Vengeance … Story
1968		Go For Broke … Story … Screenplay
1968		A Stranger in Paso Bravo … Story
1968		Death Knows No Time … Writer
1968		Ringo: The Lone Rider … Story

1967		Rattler Kid … Writer
1967		Play-Boy … Screenplay
1967		Avenger X … Screenplay
1967		Adios, Hombre … Screenplay
1967		Two Crosses in Danger Pass … Screenplay

1966		Ringo, the Mark of Vengeance … Story … Screenplay
1966		Kid Rodelo … Screenplay

1965		Django the Condemned … Screenplay
1965		Assault on Fort Texan … Screenplay … Story

1964		Man of the Cursed Valley … Writer
1964		The Betrothed … Screenplay

1956

… Screenplay

1954

… Writer

1953

… Dialogue … Story

1948

… Adaptation