Having already made two Robin Hood movies, Hammer then tried their hand at a couple of pirate movies shot in the woodland surrounding Bray Studios in Buckinghamshire (co.scripted by John Hunter, son of T. Hayes Hunter, director of the pre-Hammer horror 'The Ghoul' in 1933). Their provenance as Hammer productions was underscored by suitably bloodthirsty titles ('The Pirates of Blood River', 'The Devil-Ship Pirates') and by their usual plush production values achieved within their modest means (the budget didn't actually run to a ship, for example). This, the first, certainly lives up to its title since several people get devoured by piranhas trying to cross the title river, while a couple of others get impaled on spikes by a booby trap.
My favourite scene in a Hammer film is Rupert Davies in 'Dracula Has Risen from the Grave' expressing relief that his prospective son-in-law isn't a Methodist; and then going ballistic when he instead reveals that he's an atheist. Religious zealots also receive short shrift in this movie in the form of Andrew Keir, who shows 'mercy' to his own son by sentencing him for adultery to transportation rather than death, declares "God has answered our prayers" when he (wrongly) thinks he's fought the pirates off, and would then sooner sacrifice the entire village than reveal the location of his hidden stash of treasure (which I figured out before anyone else in the film did).
Pirate captain Christopher Lee - "As strong as a lion, as cunning as a mongoose, and as vicious as a snake" - sporting a stylish eye-patch, presides over a mean-looking bunch of cutthroats (one of whom - wearing one enormous earring - is black). But Marla Landi as the female lead is absent for most of the first half, and although two of the pirates fight a duel over her only really comes into her own when she changes into leather britches and a blouse for the film's final quarter. Even then, alas, she's present largely as a spectator during the finale.
