I’ve just finished my report and there is now some time left over to surf around the internet again.
A few days ago a friend of mine, gimbal, posted a review on our forum about the movie: Cube Zero. Haven’t seen Cube Zero yet, but I have seen the previous two versions (sequels) called Cube and Cube 2: Hypercube and I really liked them both, although part two is less original.
To see what actually a hypercube or 4d-space is, you can try this flash animation yourself. Or just take a look at the Wikipedia version of it.
In theory, the fourth dimension looks really interesting.