The movie was entered into public record (https://twitter.com/Cryptomeorg/status/566616227582582785 & http://cryptome.org/2015/02/edwards-019-027.pdf): http://cryptome.org/Citizenfour-HD.7z & http://cryptome.org/Citizenfour.7z
Mirrors: http://ergot.yfkm.eu/Citizenfour-HD.mp4 & http://ergot.yfkm.eu/Citizenfour.mp4