Directed by: David Cronenberg
Starring: Patrick McGoohan, Jennifer O'Neill, Lawrence Dane, Stephen Lack
Visible crew/equipment: In the scene where the bad scanner is trying to kill the good one using the telephone line, when the good guy turns it back and blows up the office/lab at the other end, one of the scientists is blown back through the glass by the explosion. In the shot from outside the room, it is easy to see the cable pulling him back. (01:22:55)
Continuity mistake: In the head exploding scene the table gets covered in blood and brain matter, but in the next shot the table is clean. (00:13:05)
Paul Ruth: How do you feel?
Cameron: I feel... crystal clear.
Trivia: Scanners is identified as having the first known media depiction of psychic activity directly or indirectly causing nosebleed. This concept has since become widespread in movies, television, and comic books/graphic novels.