Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A complete surprise

I caught this on cable and thought I'd watch a few minutes and then try and find something else. That never happened, I was on the edge of my seat for most of the movie. This film came as a complete surprise, and a good one at that. I'd never heard of this movie, and having grown tired of cheesy science fiction wanna be films that are mostly rip offs that fall short of being entertaining, was expecting this movie to be more of same. it wasn't.This film straddled a couple of film genres quite well, bringing something new to the table and had enough twists in the plot to keep the viewer guessing, and it even fooled me in the end. The story holds up well, and isn't filled with holes like so much of what you see today.Well done.