This movie is actually quite different from Cube, and it has acting performances that beat Cube's ass, take Cube's lunch money, and send Cube running home to mama for a gumball and a kiss. The downside is that the mathematical concepts posed in the movie really aren't all that heavy or confusing, and the big mystery/twist isn't really all that unpredictable or earth-shattering. All the same, it's entertaining and does a hell of a lot more than make the minutes go by.