提姆（杰夫丹尼尔 饰演）是个很有企图心的电视新闻记者，可是他却得不到老板的赏识，某次回家的路上，竟遇上火星人的太空船撞上地球！转化地球人外观的火星人马汀，为了修复太空船，只好找上提姆，提姆与马汀相处越久，越发觉它其实是个善良的外星人，但因为马汀的行为怪异，不知不觉被太空研究中心小组成员盯上了……

AdamandJanearethreeyearsintoaNASAmissionthathasgoneverywrong:Theirshipisbrokenand...

　　Dr. Steven Sorenson plans to tap the geothermal energy of the Earth's interior by means of a thermonuclear device detonated deep within the Earth. Despite dire warnings by fellow scientist Ted Rampian, Dr Sorenson proceeds with the experiment after secretly learning that he is terminally ill. This experiment causes a crack to form and grow within the earth's crust, which threatens to split the earth in two if it is not stopped in time.

　　airplanes have replaced cars, numbers have replaced names, pills have replaced food, government-arranged marriages have replaced love, and test tube babies have replaced ... well, you get the idea. Scientists revive a man struck by lightning in 1930; he is rechristened "Single O". He is befriended by J-21, who can't marry the girl of his dreams because he isn't "distinguished" enough -- until he is chosen for a 4-month expedition to Mars by a renegade scientist. The Mars J-21, his friend, and stowaway Single O visit is full of scantily clad women doing Busby Berkeley-style dance numbers and worshiping a fat middle-aged man.

　　本片是美国50年代一部优秀的科幻片。导演Jack Arnold运用特效，让一只小小的蜘蛛在银屏上变成一只体形庞大的塔兰图拉毒蛛。影片中的塔兰图拉毒蛛是一只十分可怕的怪兽，它四处破坏，但始终免不了灭亡的命运。
　　经典科幻片，强烈推荐！

有一个这样的理论：宇宙中存在多个平行世界，而且每个平行世界里都有一个你存在，而且所有平行世界里面的自己会分摊整个宇宙中你所具备的能量。所以，只要平行世界中的你都消失了，那所有的能量将汇聚到最后的一个人...