Metro-Goldwyn-Mayer presents a Jerry Gershwin and Elliott Kastner picture ; produced by Elliott Kastner ; story and screenplay by Alistair MacLean ; directed by Brian G. Hutton
ITC Entertainment ; Lew Grade for Associated General Films presents a Jack Wiener, David Niven, Jr. Production ; director, John Sturges ; screenplay by Tom Mankiewicz
directed by David Leveaux ; screenplay by Simon Burke ; produced by Judy Tossell, Lou Pitt ; an Egoli Tossell Film and Ostar production ; in association with Alton Road Productions, Silver Reel, Lotus Entertainment, Film House Germany, uFund
Athena ; a Nugus/Martin Production in association with FreemantleMedia and World Media Rights ; writers and historical advisors, Jonathan Martin and Tim Newark ; directed by Jonathan Martin and Philip Nugus