Nolan pointed out that
The Dark Knight Rises was made on celluloid. That he is committed to shooting on film, and wants to continue doing so. But, he warned, 35mm will be stamped out by the studios unless people — people
like them — insist otherwise.
Read the story here: http://www.laweekly.com/2012-04-12/film-tv/35-mm-film-digital-Hollywood/