Reg Park returns as Herc, who doesn't shirk from the task of returning with the cure for his dying beloved...even if it means a descent into the bowels of Hell! And demon lord Christopher Lee is determined to see that he never resurfaces! Mario Bava directs. AKA: "Hercules in the Center of the Earth," "Hercules vs. the Vampires." Original European version; 82 min. Soundtracks: Italian Dolby Digitial mono, English Dolby Digital mono; Subtitles: English; photo gallery; poster gallery; theatrical trailer. In Italian with English subtitles/Dubbed in English.