A brain from space visits earth and communicates telepathically with the children of scientists that are planning a nuclear war. The alien brain helps the children to sabotage the rockets and prevent the war.
The part of Eadie Johnson is portrayed by Sandy Descher. Descher had previous sci-fi movie experience when she played a catatonic child in Them! from 1954.
The Space Children was William Alland's first picture with Paramount. The film was based on The Egg, an unpublished story by Tom Filer, involving a girl with polio and was significantly different than the film.
The alien brain was created by special effects artist Ivyl Burks and used $3,300 of neon lights to create the glowing effect.
The Space Children was first released as a DVD in 2006 as part of the Lost Movie Classics Collection by RoDon Enterprises. A second DVD release occurred in 2012 and was accompanied by a Blu-ray release both by Olive Films.
Movie critic for The Commercial Appeal, John Beifuss, reviewed the film, stating;"while robust Wikipedia entries can be found for the other Arnold and Alland science-ficton films, "The Space Children" rates only these two sentences: 'The Space Children' is a 1958 film directed by Jack Arnold. The movie was featured on 'Mystery Science Theater 3000' in 1998 during season 9.".