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Wanting to cash in on the launching of Russia's Sputnik satellite, director Roger Corman hastily made this Earthlings vs evil aliens space opera. The trouble begins when an extraterrestrial warns humans that any attempt to send a man into orbit will result in the destruction of the planet. Despite his threats, the stubborn U.N. agrees that Mankind must not be stopped and so call in a prominent astro-scientist to begin preparations for the first manned space flight. mission. ~ Sandra Brennan, All Movie Guide