Leslie Norman,Joseph Losey导演执导的《X--未知的元素》，1956年上映至今获得了不错的口碑，由Dean Jagger,Edward Chapman,Leo McKern,Anthony Newley等主演的一部不错的科幻片。

X--未知的元素剧情：

British Army radiation drills at a remote Scottish base attract a subterranean, radioactive entity of unknown nature that vanishes, leaving two severely radiation-burned soldiers... and a bottomless crack in the earth. Others who meet the thing in the night suffer likewise, and with increasing severity; it seems to be able to absorb radiation from any source, growing bigger and bigger. What is it How do you destroy a thing that feeds on energy