More on topic, it's difficult to imagine what anyone could write nowadays that would have the devastating impact of 1984. It's not like there is any shortage of works attacking neoliberal capitalism or any other economic/political system, and none of these has the messianic pretensions or fundamental hypocrisy of the Leninism that Orwell was critiquing. (Arguably, Orwell made it impossible for any such system to be taken at face value again.)
I found its approach to the philosophical issues it touched on was facile and pretentious. A very cool looking movie but it could have been so much more profound.
Nevertheless, after the bullet-time special effects are no longer cool, and after the wardrobe and cinematic style become dated, you still have people referring to being "red-pilled". I think that's a good legacy for a movie... to have the central philosophical idea become imbedded into the common vernacular.