The Movie Mystery Letterbox was placed on October 1, 2002 by Brett
somewhere in the United States.

The clue is a movie starting at the 45th parallel on an interstate
somewhere in the US and ends with me getting the box from the hiding
place. The movie encompasses about one hour of drive and walking
time, time compressed to about two minutes.

More details and the movie can be found here:

http://home.agalis.net/bcostley/Letterbox/movie.htm