Yes, Sharknado is a real movie. It comes from The Asylum, the production company that makes all those crappy knock-off films. The thing about this is, it looks and sounds so ridiculously over the top that I want to see it. If you haven't been able to figure out what the movie is about yet, it's about a tornado full of sharks. Here's the synopsis:
When a freak hurricane swamps Los Angeles, thousands of sharks terrorize the waterlogged populace. And when the high-speed winds form tornadoes in the desert, nature’s deadliest killer rules water, land, and air.
This makes me laugh. I can't wait to see the trailer for this thing. It stars Tara Reid, Ian Zeiring, and John Heard.