The Engineering Challenges.of The Cube

Ventilation was not present, as noted by the characters.

Type like a genius
Talk like a drunk

You forgot about the traps as well. They would require engineering!

I agree with most of the points noted. It is possible the structure was underground or at least partially subterranean. I think the biggest engineering problem, however, was the mechanism by which the rooms moved. Magnetism seems the only viable solution, but I can't even imagine how it would be implemented on that kind of scale. How would the electromagnets even be powered? Obviously all of the rooms have lighting and automatic doors, so there is a source of electricity somewhere and it is being transmitted somehow.

This might be one of those cases where over-thinking takes away some of the fun and frivolity of science-fiction :)

The shifting mechanism can be solved, if the cube walls are thick enough to contain some sort of electric engine. If so, it's not that difficult. All you have to do is put a pair of protruding motor-driven cogwheels and a pair of matching concave guide rails on each side of the cube, one of each being vertical and one being horizontal (so together they would form a hashtag shape). Since the cubes change their position, but their orientation always remains the same, the cogwheels and rails can be arranged in a pattern that ensures that the cogwheels from one cube always fit into rails of adjacent ones (their position must be inverted on opposite sides of the cube). Then you just put all the cubes together correctly and they can move in any direction using only each other as a support, no need for any external structure or driving mechanism. Add some PLCs telling the engines when and in which direction they should move and job's done. Electricity for the whole contraption can be solved in a similar manner - the rails and cogwheels can also act as third rail and pickup shoe used in subway trains, with power being brough through the cubes that are on the surface at the given moment. Not sure if it would require some smart switching system so the cubes would always form a working grid or whether you could just energize the whole thing somehow and do some 'magic' with stuff like induction, I'm no electrician, but I'm sure someone more educated in this area would be able to figure it out easily.
Of course many other small problems would arise if someone really tried to build something this big, but principally it can work and probably it could even be done with today's technology.

The notion that each cube went through a number of coordinates is structurally impossible, both logically, and from the architectural look we got at the shell - unless whole columns and rows moved.

So that's a bit of a plothole, if you ask me. Most of the structure would be permanently fixed in place.

Salter you can paint your AUssie...you are a joke - Matty1933

Your premise is flawed in a few ways.

You're assuming it was built by humans.
You're assuming it isn't a simulation.
You're assuming it was built with current technology.

I reply easy and easy to mistake, but wasnt there like 1 cube out of the shell?

I woldnt take Mystery, Sci-Fi film reality as they do resember it, they really dont picture that as they are in reality.

Yash, Ufos play cube and there is one way out.

the structure and moving mechanisms are sketch at best.
but i just love the feel of this film.