地球防衛軍
In the United States, "The Mysterians" was originally purchased by RKO Radio Pictures, which provided the dubbing, but was sold to Loew's Inc. for release due to RKO's failing fortunes. The film was double-billed with "Watusi" and released in 15 May 1959 via MGM. According to MGM records the film made the studio a profit of only $58,000 in the United States.