A Thoughtful Puzzle
I've always been a fan of the Saw way of storytelling. Allowing the audience to put together a puzzle as the plot develops, trusting the audience to be intelligent and interactive, this makes for a great way of viewing a movie. Cube was a great example of this storytelling. The characters were slowly revealed with their backgrounds and why they were brought together in this situation. It's life or death, but the escape is out of reach for most.