Patricia Zimmermann and Sean Zimmermann Auyash contributed an invited essay to the National Film Registry of the Library of Congress on the film Nanook of the North (Robert Flaherty, USA, 1922). Zimmermann is Professor of Screen Studies and codirector of the Finger Lakes Environmental Film Festival.
Their essay can be accessed here: https://www.loc.gov/programs/static/national-film-preservation-board/documents/nanook2.pdf
The National Film Registry was “established by the National Film Preservation Act of 1988, the National Film Preservation Board works to ensure the survival, conservation and increased public availability of America's film heritage, including: advising the Librarian on its recommendations for annual selections to the National Film Registry, apprising the Librarian of changing trends and policies in the field of film preservation, and counseling the Librarian on ongoing implementation of the National Film Preservation Plan.”
The National Film Registry selects 25 films each year showcasing the range and diversity of American film heritage to increase awareness for its preservation. http://www.loc.gov/programs/national-film-preservation-board/about-this-program/
Zimmermann and Zimmermann Auyahs' piece is included in a new initiative for the National Film Registry to feature expanded essays on the films on the registry by film historians and theorists. Read more of the essays here: http://www.loc.gov/programs/national-film-preservation-board/film-registry/complete-national-film-registry-listing/index-of-essays
https://www.ithaca.edu/intercom/article.php/20151023140141943