Criterion Channel. In 2009, author Bahman Maghsoudlou published a book titled Grass: Untold Stories that includes background information and historical references related to the making of the film. References External links Grass essay by Dennis Doros on the National Film Registry website Grass essay by Daniel Eagan in America's Film Legacy: The Authoritative Guide to the Landmark Movies in the National Film Registry, A&C Black, 2010 , pages 97–99 Grass clip (20:47) at the Internet Archive Another Grass clip (10:04) 1925 films American silent feature films Black-and-white documentary films American documentary films Films shot in Iran United States National Film Registry films Documentary films about Iran Films directed by Ernest B. Schoedsack Films directed by Merian C. Cooper Anthropology documentary films 1925 documentary films American black-and-white films 1920s American films