Trivia: The doctor that treats Cole after the incident at the birthday party is played by director M. Night Shamalyan. Interesting about this scene is that Shamalyan came from a family of doctors, including his wife who is one. He also at one time wanted to become a doctor before he decided on a career in filmmaking.
Trivia: Every time dead people are close by, there is something red in the preceding scene (i.e., when Cole is at the birthday party and is about to get trapped in the attic with the ghosts, there is a red balloon rising toward the ceiling; when Graham comes home to his wife sleeping and is about to realize that he too is dead, she is wearing a red throw; when Cole is in the car with his mother and there is an accident up ahead, she is wearing a red sweater, etc).
Trivia: Bruce Willis, for his role in the movie, received $100 million dollars, as part of his contract said he would take a percentage of the box-office profit and the DVD sales.
Trivia: The Sixth Sense is one of 5 horror films to be nominated for the Academy Award for Best Picture (the others are "The Exorcist", "Jaws", "The Silence of the Lambs" which won, and "Black Swan"). It's also the only one of these nominees to not actually win any Oscars.