In the same way that 'Teenage Mutant Ninja Turtles II: The Secret of the Ooze' and 'City Slickers II: The Legend of Curly's Gold' have - what I would consider to be - perfect subtitles, 'Cube 2: Hypercube' works on that same level. Maybe its subtitle isn't as freely interchangeable as the other two, but I still like it. Seriously, whenever a sequel to a movie is announced I always want it to be 'The Legend of Curly's Gold' or 'The Secret of the Ooze' and it would almost always work - try it out!
'Forget everything you thought you knew about cubes!'
'Does for cubes what 'Sphere' did for spheres.'
Any tag line would be better than the one this film chose:
'The first one had rules.' seems pretty stupid, when you consider that people probably would have responded better to the fact that some of the numbers arranged on the front seem to form the word booob!
But, maybe the tag line is just going for 100% accuracy rather than marketability. The first film did have rules. The first film featured a series of shifting boxes housing a group of people who need to figure a way out, all while trying to avoid the escape/ death ratio that works it way towards 1:1; some kind of mathematical code dictated which rooms were safe and which were not.
This second 'Cube' might not adhere to that construct. For one thing it's escape/ death ratio approaches then surpasses 1:1. The number of people who die in this movie far exceed the number of people who are in it. How?
Hypercube! That's how!
Hypercube is a 4th dimensional construct, slowly folding across and revealing breaks in the laws of physics, time, space, whatever has rules, this film breaks them!
Want to move sideways into another room? Nope! You've just dropped from the ceiling to your death!
Want to spend time trying to figure out if that is Brian Cox or a guy who just looks kinda like him?
Yes, there are rules in this film. But are there really?
Yes. Yes, there are.
In a film that relies on the Cube being able to bend time and space, absolutely no use is make of that, for any effect at all.
Yes, people discover deal trans-dimensional or time distorted versions of themselves, but all in a very linear and pretty-much-entirely-explained-before-they-show-up way. It's a decent, inoffensive B movie, really the only kind of sequel you could imagine the original 'Cube' having without rehashing the exact same plot, but this is not as well thought out as it needed to be to stand on its own.
Overall I'd rate this film:
"Hey! I know Kari Matchett from '24'!" out of 10.