Read a book.
Or write one. Or both.
Firefly and it's phoenix like rebirth as Serenity,comming Fall '05 to a theatre near you, is exemplary only in that it is mainstream SF that's actually entertaining. Just because it's fun for more discriminating space/tech geeks doesn't make it terribly deep and/or thought provoking.
Movies and TV are going to be directed towards more synergistic money making setups with simplified and flashy plots so the kiddies will wanna buy the action figures. Heck, I'm thinking about picking up an invisible girl action figure myself so I can fondle a plastic Jessica Alba in the privacy of my home.
Go for the books, thats the medium that can sustain a good quality of "weird and non-linear" SF with such a limited audience.