The town of Sag Harbor, New York, located on Long Island’s South Fork, may at first glance seem like a natural fit for arthouse theaters to thrive. However, its only independent cinema was preserved not only from the economic downturn facing movie theaters, but also from the effects of a devastating fire. A former whaling village, Sag Harbor has always had a more bohemian reputation than the nearby Hamptons, with more year-round residents including writers, artists, and movie-makers, and the theater has been part of the progression. Opening first as…