Sci-fi movies are fascinating for either predicting where technology will go or completely (and hysterically) missing the mark.

While today's hi-tech gadgets make it seem like nothing is impossible, there are still some things we don't have yet. We get a taste of one of these futuristic achievements in Neil Blomkamp's "Elysium" (opening this week), which introduces us to a machine that immediately cures cancer and other diseases.

Like Blomkamp's medical marvel, let's take at some of our favorite fictional movie gadgets that we wish were real.

'Elysium' Preview - What Is Elysium?
CATEGORIES Features, Video