This attempts to combine something of the cool swinging style of "Blow Up" with a James Coburn comedy-heist movie which are anything but cool and stylish. Providing undeserved gravitas is the inimitable James Mason. Its a combination that just doesnt gel, The lovely Susanna York had an innate dignity and class as an actress such as had no place here. It is at least attractively shot in colourful sunny locations. Perhaps the cast regarded it as a holiday rather than something that would advance their reputations

This is a very cool, very hip caper film, with sexy James Coburn in the title role. He plays a rogue and conman who…no spoilers, here, It set in Tangier and throughout the Mediterranean, has gorgeous photography, has more twists and turns than any film I can think of, and an ending that is perfect and hilarious and brilliant. It's one of those who is conning who films, and this is one of the very best. It's perfectly cast, James Coburn is awesome, as is James Mason, James Fox, James Alderton, and Susannah York. And the soundtrack is very intense jazz, and Lou Rawls sings the opening song.This is a great film.

Duffy is one of those films that's a chicken/egg film. Is the fact that James Mason treats his two sons Edward Fox and James Alderton like dirt make them hate him. Or is it the fact that they apparently are worthless and he let's them know it. Whatever it is, these two have made up there mind to show dear old dad a thing or two. Businessman Mason is shipping a large lot of money from Tangier to Marseille on a ship and they plan to rob it. That'll show dad.So Alderton like the sons in House Of Strangers and Broken Lance works for wages and this film bears some resemblance to those two. Fox is just a worthless playboy starting to look a little too old for those Carnaby Street fashions that swinging London made popular in the Sixties. These two and Fox's girlfriend Susannah York do realize that they don't have the talent for this caper. So they call in an exiled American professional criminal, the guy who plays the title role in this film, James Coburn.Knowing a bit about Coburn I can see why he gravitated to this movie. Duffy is a whole lot like the real James Coburn, a rather free spirited hedonist who saw acting as a way to make sure he had his pleasures just like Duffy is into criminality. He knows his business and gives the trio proper guidance. But York has an agenda all her own.Duffy doesn't quite get off the ground, most of the time you're wishing he'd just smack these two Calvert twits, James Mason's idiot sons. And these two are truly not worthy of anyone's rooting interest.But Coburn and Mason cut a pair of interesting characters and the cinematography of the blue Mediterranean is nice. Fans of Mason and Coburn will like it.

Wondering if there were ever any copies (videos or DVDs) made of this movie. It's a small classic of a not very widely exploited genre (a certain hippie lifestyle which in the U.S. was captured in Easy Rider but which does not have many European counterparts -- though this film is much lighter and more comedic than Easy Rider). By the way, the beach club in the film was a specially constructed set, demolished after the filming was over. I know cause I was an extra in the scenes shot at that location. The location itself was a beautiful uninhabited spot on the coast about an hour's drive across mountains and desert terrain outside of Almeria, where the rocky, pockmarked cliffs dropped straight into the sea. If anyone could tell me whether it might be possible to obtain a copy of the film -- have searched all known sources without success -- would greatly appreciate it. James Coburn fans in particular would love this film which I think would be greatly enjoyed if run again on T.V. or released in video/DVD format.