Shot in 11 days.
Some sequences were originally tinted green on the original release prints.
The opening shot of the Whits Sands Missile Base, and some of the rocket scenes, were lifted from Rocketship X-M, which, like Lost Continent, had also been released by Lippert Pictures.
The original green tint of the "lost continent" sequences was not reproduced for television prints of the film (the sequences were shown in black-and-white instead), and it was not until well over 30 years after the film's initial release that the tint was restored for home video in the late 1980s.