David Fincher’s 2010 Facebook drama “The Social Network,” 1974’s indie horror classic “The Texas Chainsaw Massacre” and Patrick Swayze and Jennifer Grey’s Catskills-set love affair “Dirty Dancing” have been selected for preservation by the National Film Registry. The Librarian of Congress annually recognizes 25 motion pictures that are at least 10 years old and register as “culturally, historically […]