Bradbury, Asimov, Heinlein, et al. will excite them the way Star Wars used to. Space opera has its place. It's the jumping-on point for the next generation of fans. And even professional astronauts. I don't know how many astronauts said they were inspired by Buck Rogers, Flash Gordon and the like.
Novels begin with an idea and are then polished by the writer's point of view.
Movies begin with an anticipated profit margin, which is then polished by anticipating what will make the movie appealing to the lowest common denominator. George Lucas is one of the extremely few producers allowed to put together movies without compromise. This is, however, my only gripe with the movie. I am not bothered by the different costumes, and I have long said that if ever an X-Men movie were to be made, Patrick Stewart and Halle Berry should get the parts of the Professor and Storm. All rights reserved.