Shown in the USA in Spanish language theaters before being dubbed into English and sold to television.
As with the other Mexican horror films he made, Boris Karloff shot all his scenes in Los Angeles and with the assistance of a mobile oxygen unit.
Boris Karloff's last film, clinched by the absence of Julissa, who was replaced in this one film by Christa Linder.
The ornate panes of the space ship were used as walls for a room in House of Evil, filmed around the same time.