“I am afraid of my visions.” Thus spoke H.R. Giger, the artist whose paintings led to him being engaged by director Ridley Scott to design the xenomorph for the first Alien film in the late 1970s.

Once dismissed as cheap schlock for drive-ins and kiddie matinees, movies about space aliens have long since ascended into the budgetary stratosphere while reveling in VFX scares and wonders. Yoshiki ...