an Orion Pictures release ; Amicus Productions present a Max J. Rosenberg and Milton Subotsky production ; Land Associates & American International Pictures ; screenplay by James Cawthorn and Michael Moorcock ; produced by John Dark ; directed by Kevin Connor. The people that time forgot / American International ; Samuel Z. Arkoff presents a Max J. Rosenberg production ; screenplay by Patrick Tilley ; produced by John Dark ; directed by Kevin Connor
MGM Home Entertainment LLC ; United Artists ; the George Stevens Production ; screenplay by James Lee Barrett and George Stevens ; produced and directed by George Stevens
an Orion Pictures release ; Hemdale Film Corporation presents ; a Carter De Haven Production ; produced by Carter De Haven and Angelo Pizzo ; written by Angelo Pizzo ; directed by David Anspaugh
Metro Goldwyn Mayer ; Joseph E. Levine presents a Stanley Baker-Cy Endfield production ; [an Embassy Pictures release] ; a Diamond Films production ; produced by Stanley Baker and Cy Endfield ; directed by Cy Endfield ; original screenplay by John Prebble and Cy Endfield