SPOILER ALERT: This story contains spoilers for “Elio,” now playing in theaters. Disney Pixar’s latest animated feature, “Elio” centers on a young orphan boy who is desperate to be abducted by aliens.

What do Xenomorph eggs feel like? According to the special effects experts who designed them for Alien: Earth, the answer is warm and sticky. Second Skin Studio worked directly with Wētā Workshop and ...