Whittingham collaborated with Ian Fleming and producer Kevin McClory on a screenplay for a James Bond film.
During the lawsuit, Whittingham stepped down as 'co-plaintiff' and stood by McClory as 'principal witness', having previously signed away all his rights "of whatsoever nature" entirely when the screenplay was presumed finished.
As a result of the settlement, future versions of the novel were forced to credit, based on the screen treatment by Kevin McClory, Jack Whittingham, and Ian Fleming (in that order).
Further adaptations had been planned at one point or another by McClory, but were scrapped due to lawsuits from MGM and United Artists.
In July 1965, his daughter, Sylvan, launched his new boat, "Domani", a 38-foot Atlantic Ketch, and, later that year Whittingham and his wife, Margo, his son Jonathan and one other crew member Christopher Smith.
The ship's company were forced to heave to under bare poles for three days which fortunately pushed the vessel North East back out into the Atlantic rather than towards the coastline.
Maltese authorities were concerned when the arrival of the boat was overdue and search parties made attempts to locate them.