Atlas Shrugged, if they could ever actually make it (mini-series would be best) is great Conservative Sci-Fi.
It is actually currently in production rumored to have Angelina Jolie as Dagny. The newest rumor is that it will be a mini-series.
http://www.imdb.com/title/tt0480239/
I've heard a number of people repeatedly call Atlas Shrugged "science fiction." I have never understood how in the world that could be... The closest I could ever come would be a term that Harlan Ellison used to describe much of his own work, and that in his "Dangerous Visions" anthologies, "speculative fiction." While I like Ellison as an author, and I love him as an editor and commentator (his comments are often more entertaining than his stories), he used to be pretty hard core left, and I've disagreed with many things he's written. But some I think he's hit dead on.
Mark