Derrida's Ouija Board

In M. Night Shyamalan's The Sixth Sense, the aptly named Cole Sear (Haley Joel Osment) discloses to his therapist the now-infamous words: "I see dead people." Only at the end of the film does Malcolm Crowe (Bruce Willis), the child psychologist to whom Cole confides, finally realize the full implications of what his patient has been trying to tell him: that Crowe is one of these dead people who has trespassed the supposedly unbridgeable barrier between the living and the dead.