Metro-Goldwyn-Mayer ; Polaris ; Stanley Kubrick Productions ; produced by Stanley Kubrick ; screenplay by Arthur C. Clarke & Stanley Kubrick ; directed by Stanley Kubrick
Metro Goldwyn Mayer ; United Artists ; a film produced by Alberto Grimaldi for PEA, Produzioni Europee Associate, Roma ; story and screenplay by Federico Fellini and Bernardino Zapponi ; directed by Federico Fellini ; additional screenplay, Brunello Rondi