Greek mythology is done up brown by the special-effects expertise of Ray Harryhausen in Jason and the Argonauts. Jason (Todd Armstrong), rightful heir to the throne of Thessaly, is spared from death through the intervention of the goddess Hera (Honor Blackman). The other celestial inhabitants of Mount Olympus watch in amusement as Hera surreptitiously aids Jason in his search for the Golden Fleece. Obstacles to this goal include a giant come-to-life statue named Talos, the screeching harpies plaguing blind prophet Phineas (Patrick Troughton), a set of huge clashing rocks, the seven-headed hydra, and an army of skeletons (this bravura climactic sequence assured Harryhausen's place in the hearts of 13-year-old boys of all ages). Supporting characters include Nancy Kovack as a pre-infanticide Medea and Nigel Green as a pacifistic Hercules. Bernard Herrmann's surging musical score was icing on the cake for this greatest of all Ray Harryhausen creations.
~ Hal Erickson, All Movie Guide