Sebastian Stan (Chase Collins) did all of his own stunts.
The outside Danvers mansion, which is always seen from far away, is really a derelict water purification facility, with some window lighting and greenery added by the production team.
Caleb's last name is Danvers. Danvers is the name of a city in northeastern Massachusetts, only ten miles from Ipswich, where this movie is set. Danvers is also the modern name of "Salem Village," the real center of the so-called Salem witch hysteria of 1692-93, which also included Ipswich.
During a discussion on Stephen King, Reid is quoted as saying "Dreamcatcher was the shit!" The book Dreamcatcher is about four boyhood friends with supernatural powers, much like the film.
Reached number one at the US box office with only making $8,852,458 opening weekend.
Renny Harlin: [Finland] A famous Finnish painting "Haavoittunut enkeli" (English: The Wounded Angel) by Hugo Simberg is hung on Sarah's wall. It shows two boys carrying an angel on a stretcher.