I don't want to give too much away, because the suspense is the best part of watching this. Which rooms will have traps? What are they? Who will die? Let's say that only two people are actually useful, in that they can use their math skills to solve the puzzle of the Cube.
Who made this Cube? Was it the government? Was it aliens? Is the government run by aliens? Also, the cop who takes control and later beats people is by no means unexpected and should not be considered a spoiler. After the puzzle of the Cube has been solved, what happens to those who survive? What is on the outside of the Cube? A new, bigger Cube?? What if its a series of cubes-within cubes within cubes??? Where does it end people?
This movie was enjoyable because it was a psychological thriller with a touch of mystery, and enough gore to keep me somewhat entertained. I do enjoy good gore. I will give this film an 8/10.