I don't know the answer to the question but--I thought Cliff Robertson did a great job as Jack Kennedy, and Ty Hardin did an excellent job as Lt Thom. Other good actors in the movie--Norman Fell, and the controversial Bobby Blake.
Oh and the film was filmed in Color--not B&W

I jusat saw it very recently on TCM and it was still very entertaining. [img]smile.gif[/img]
I don't care much for the Kennedy clan myself but--I don't hate them.