Someone asked a question about the future of the white house and it got me thinkin' 'bout moobies. Lots of dystopian sci-fi movies come out every year, and ironically now a days they're all kind of crappy and cheap looking, like many aspects of the hypothesized economy of the future.
But there's still a lot of great ones to choose from, like Children of Men, V for Vendetta, The Lobster, and yes... Idiocracy. I love that movie but the answer people always give to this question is Idiocracy. No Idiocracy!
Also you don't even have to name a sci-fi, some movies predict the future without even setting it there, like Network.