Was not all film in Greenfield, Iowa
Although almost all sites claim the entire movie was filmed in Greenfield Iowa the interior church shots were actually filmed at the former Methodist Church in nearby Orient, Iowa. My spouse's grandmother actually owned the church! ALAS, the church mysteriously burned to the ground several years after the movie. Say, maybe it is the same arsonist that has set fire to the nearby actual Bridges of Madison County! Something to think about!
share