This bears one of the earliest film editing credits for Dede Allen, who went on to a career editing such feature films as The Hustler, Bonnie and Clyde, Dog Day Afternoon, and Reds.
The screenplay is based (uncredited) on the short story "Bottle Baby" by print/TV/film writer Henry Slesar, that was published in the science fiction magazine Fantastic (April 1957).
First known movie appearance of the new 1958 Edsel automobile.
The working title of the film was The Girl from 5000 A.D.
Outdoor shots were filmed in and around Dade County, Florida.