A MAN COULD GET KILLED opens. Directed by Ronald Neame. Written by David E. Walker, Richard L. Breen and T.E.B. Clarke. James Garner stars as a US banker who gets his Lisbon sojourn royally up-ended when a diamond smuggling cartel mistakens him for a government agent. Frivolous espionage caper served with perfunctory dash of faux Hitchcockian intrigue. With Melina Mercouri, Sandra Dee, Anthony Franciosa and Robert Coote.