You probably already know that most science fiction movies feature terrible science, and especially awful physics. But some movies feature scientific mistakes so basic and so terrible, they give you what can only be described as a "logic coronary."

What is the scariest science fiction or fantasy film of all time? Which movies stand above the rest of all horror movies as the most terrifying?

In movies humans fight off alien occupation forces, explode alien ships, and mind-control aliens with the power of love. How on earth can we think that would happen?

We're at it again, taking it to the internets and tweeting our way through a Netflix-albe genre flick of your choosing. So, choose wisely, and we'll see you tonight at 9:30 pm EST.

Yes, it's been a while — due to an unlikely combination of carpal tunnel and chupacabra — but we're back, picking a Netflix Instant film and eviscerating on Twitter. And, as usual, you pick the movie.

The awesome thing about science fiction is that anything can happen — including the occasional incredibly convenient miracle. Sometimes circumstances become so desperate and dire in a science fiction tale that even the "reset button" can't fix them — and that's when the "deus ex machina" shows up. The term, meaning "God…