This is an adventure film based on a Jules Verne's novel about a pirate captain and his crew that take over a small island with a lighthouse on it; the idea is to turn out the light at night when ships are at sight so that they crash against the rocks and the pirates can easily steal everything from the passengers and the wrecked vessel. The point is that one of the lighthouse servers -the only survivor- manages to escape into the island and will try to ruin the pirates sinister plans.
Though not a great film at all and a bit slow, "The Light at the End of the World" doesn't lack some sort of charm and interest perhaps because of the lone man's fight against the whole bunch of criminals all by himself and perhaps also because of the hostile and lonely atmosphere in which the action takes place.
Kirk Douglas is the lonely fighter and Yul Brynner plays the flamboyant and deadly captain Kongre, leader of the pirates. The feminine touch is brought by Samantha Eggar as a survivor of a ship wreck that is captured by Kongre's men.
Not a great adventure film, but sort of original and worth a look in my opinion for fans of the genre.
The film was shot in the coast of Spain, but Verne's novel settles the action in the "Isla de los Estados", a small Argentine island a few miles east of its most southern province called "Tierra del Fuego" (Land of Fire) where you can still visit the lighthouse that inspired Verne.