Hace un millón de años (1966) de Don Chaffey

• Título original: One Million Years B.C.
• Año: 1966
• País: Reino Unido
• Idioma(s): Inglés
• Director(es): Don Chaffey
• Guionista(s): Michael Carreras
• Fotografía: Wilkie Cooper
• Banda sonora: Mario Nascimbene
• Intérpretes: Raquel Welch (Loana), John Richardson (Tumak), Percy Herbert (Sakana), Robert Brown (Akhoba), Martine Beswick (Nupondi), Jean Wladon (Ahot), Lisa Thomas (Sura), Yvonne Horner (Ullah), Malya Nappi (Tohana), William Lyon Brown (Payto), Richard James (Young Rock Man), Frank Hayden (1st Rock Man), Terence Maidment (1st Shell Man), Micky De Rauch (1st Shell Girl), David Kossoff (Narrator (uncredited)), Heraclio Niz Mesa (Caveman (uncredited)), James Payne (One of the Cave People (uncredited)), Vic Perrin (Narrator (uncredited)), Dido Plumb (Caveman (uncredited)), Nikki Van der Zyl (Loana (voz) (uncredited))
• Compañía(s): Hammer Film Productions
• Duración: 1h 40m