Like someone else suggested, Firefly/Serenity are pretty good in that they have an anti-socialist, anti-big-government kind of theme - you can find all of Firefly, and I believe Serenity, in good quality on Hulu.com. However, because this is occasionally confusing to people who watch them online, ‘Serenity’ is the name of the pilot episode of Firefly as well as the movie.
In addition, I think Dark City, Sunshine, and Alien/Aliens were pretty free of propaganda or political overtones, and I never got around to watching any of the Terminator movies straight through but they seemed pretty politic-free too. Oh, and Iron Man is very non-politically-correct, and Transformers has no political overtones at all (possibly because it has no plot at all, either) cause it’s purely a ‘fun’ movie about giant robots fighting other giant robots and creating spectacular explosions in the process, and gratuitous shots of Megan Fox in close proximity to sports cars.
Would have to see such and ponder . . . may not be a priority.
I don’t recall enough of Alien to say one way or the other.
A lot of stuff is just geared to wind up the fear factor. The oligarchy is big on fear because their boss—satan is.
Some stuff is geared to play one side or the other of setting up various good-cop/bad-cop scenarios and dynamics . . . toward increasing chaos once things get really rolling.