Scanners is a 1981 Canadian science fiction horror film written and directed by David Cronenberg and starring Stephen Lack, Jennifer O'Neill, Michael Ironside, and Patrick McGoohan. In the film, "scanners" are psychics with unusual telepathic and telekinetic powers. ConSec, a purveyor of weaponry and security systems, searches out scanners to use them for its own purposes. The film's plot concerns the attempt by Darryl Revok (Ironside), a renegade scanner, to wage a war against ConSec. Another scanner, Cameron Vale (Lack), is dispatched by ConSec to stop Revok.

Scanners premiered in January 1981 to lukewarm reviews from critics but became one of the first films produced in Canada to successfully compete with American films at the international box office. It brought Cronenberg and his controversial style of body horror attention to mainstream film audiences for the first time and has since been reevaluated as a cult classic. It is particularly well known for a scene that depicts Revok psychically causing a rival scanner's head to graphically explode.