Progeny, directed by Yuzna and co-written by Stuart Gordon, takes the alien-abduction movie and plays it as body horror about pregnancy. George designed both the alien visitors and the effects for the film’s surgical climax. Its creature close-ups and the surgery are practical effects.
His alien design keeps the bulbous-headed “Grey” silhouette but adds long, jointed fingers and wet, translucent, insect-like skin. The cesarean sequence uses a prosthetic torso on actor Jillian McWhirter: the incision opens into a physical cavity, and the extraction ends with a creature puppet.
The extracted creature is a small, wet, multi-tentacled larva with a pale translucence. No crew account identifies the materials, plumbing or operation of either the torso or the larva.