The picture has allegedly been available in the public domain since May 2014 due to its copyright owners Cine Artists Pictures allegedly no longer being an active business entity.
It took Victoria Spencer (Barbara Carrera) 4-1/2 weeks to go from being an embryo to a fully grown woman.
First of two back-to-back sci-fi/horror films for Barbara Carrera, who appeared in the following year's The Island of Dr. Moreau (1977). Both films were produced by Sandy Howard and included three of the same make-up department personnel.
An ectogen is a person who was, or is being, gestated in an artificial womb.
The movie covered some of the same thematic territory that director Ralph Nelson had previously examined in his earlier film Charly (1968).
Joyce Brothers: As herself at a party but portraying a biologist rather than her actual profession as a psychologist.