 The Secret of the Incas' Empire1987 · Prof. Alexis Xristopoulos (as John Francis Scott), Director | Prof. Alexis Xristopoulos (as John Francis Scott), Director |
 Yeti: The Giant of the 20th Century1977 · Director, Screenplay, Producer | Director, Screenplay, Producer |
 God's Gun1976 · Screenplay, Director | Screenplay, Director |
 We Are No Angels1975 · Writer, Director | Writer, Director |
 This Time I'll Make You Rich1974 · Producer, Director, Writer | Producer, Director, Writer |
 Sotto a chi tocca!1972 · Director, Writer | Director, Writer |
 Return of Sabata1971 · Director, Writer | Director, Writer |
 Adiós, Sabata1970 · Director, Writer | Director, Writer |
 Sabata1969 · Screenplay, Director | Screenplay, Director |
 Five for Hell1969 · Writer, Director | Writer, Director |
 If You Meet Sartana Pray for Your Death1968 · Gambler, Director, Screenplay | Gambler, Director, Screenplay |
 Kill, Panther, Kill!1968 · Smoky, Director, Screenplay | Smoky, Director, Screenplay |
 Kill Me Gently1967 · Director | Director |
 The Three Fantastic Supermen1967 · Director, Writer | Director, Writer |
 Sette donne per una strage1967 · Director | Director |
 The Tall Women1966 · Director | Director |
 So Darling, So Deadly1966 · Rex, Director, Screenplay | Rex, Director, Screenplay |
 Kiss Kiss, Kill Kill1966 · Screenplay, Director | Screenplay, Director |
 Left Handed Johnny West1965 · Director | Director |
 3 Avengers1964 · Director, Screenplay | Director, Screenplay |
 Mission To Hell1964 · Director | Director |
 The Ten Gladiators1963 · Livius Verus, Director, Writer | Livius Verus, Director, Writer |
 The Old Testament1963 · Director, Screenplay | Director, Screenplay |
 79 A.D.1962 · Director, Writer | Director, Writer |
 The Fury of Hercules1962 · Director | Director |
 Samson1961 · Screenplay, Director | Screenplay, Director |
 Francis the Smuggler1953 · Director, Screenplay | Director, Screenplay |
