Sci-fi movies have a knack not only for showing us fantastical stories we could only dream of, but also for presenting nightmarish character exits that often require cleanup with a mop and bucket.

Some exceptionally unsettling elements were thrown together to create the Xenomorph when it first appeared in Ridley Scott's 1979 horror sci-fi, "Alien." Spliced from ...

Jordan Peele's twisted take on extraterrestrial horror is his most divisive movie yet.