Man in the Middle (1964) aka The Winston Affair

Drama, War Director: Guy Hamilton Robert Mitchum . .. Lt. Col. Barney Adams France Nuyen . .. Kate Davray Barry Sullivan . .. General Kempton Trevor Howard . .. Major John Darryl Kensington Keenan Wynn . .. Lieut. Charles Winston Sam Wanamaker . .. Major Leon Kaufman Alexander Knox . .. Colonel Burton