It's such a novel experience to watch a movie and have no idea what it's about besides the title and the genre (science fiction)! Usually there will be at least a little blurb of a plot summary via netflix/hulu or I would have googled it and read the wikipedia entry. It feels good. Like an act of faith. =) So far it's a little boring - beautiful scenes though! - except for the Hal thing. I just know he's going to turn evil. That blank red "eye" oh em gee ... and his weird manner of speech.
THIS IS SO HARD. I love spoilers. They don't 'ruin' movies for me at all.