Anole, the fictional West Virginia town the lead character moves to, is an anagram for "alone"; the fictional West Virginia county it lies within, Tomere, is an anagram for "remote."
The flute melody heard throughout the movie is from Debussy's "Prélude à l'après-midi d'un faune" or "Prelude to the Afternoon of a Faun."
19 actresses from the DC/Baltimore area auditioned for the role of Claire, all over the phone.
In the scenes where Mark is sitting at his desk, a picture of the 1974 album Relayer by Yes can be seen hanging on the wall.