Hercules (1958) is an Italian feature film based upon the Hercules myths and the Quest for the Golden Fleece. The film's screenplay is loosely based upon the myths of Hercules and the Greek epic poem Argonautica by Apollonius of Rhodes. In both myths and epic poem, Hercules' role in the Quest for the Golden Fleece is marginal; he abandons the expedition early-on when Hylas, his armor-bearer and eromenos, is lost on an island while searching for water. With Hylas conveniently absent in the film, Hercules' role is greatly expanded: he remains with the expedition for its duration, saves the Argo from destruction in a storm, disciplines mutinous crew, and overwhelms enemy forces with brute strength in the film's finale. Twists on the sources include the introduction of Iole into the tale as Pelias' daughter, the replacement of Hylas with young Ulysses as Hercules' protege, and Hercules' renunciation of his immortality in order to experience life as a mortal man.