The Harvard Film Archive (HFA), founded 1979, is a film archive devoted to cinema located in the Carpenter Center for the Visual Arts at Harvard University in Cambridge, Massachusetts, United States. It maintains a collection of over 25.000 films and related documents, and regularly screens films in its 210 seat theater. It also maintains a film conservation center near Central Square, Cambridge.

More information on the Wikipedia page [1]

The website is [2]