While not bad, per say, with decent acting, no obvious-out-of-place-dumb-decision-making-to-further-the-plot, and nicely designed sets, there's just not much going on with this movie. Barely more than a back and forth of arguments between the Rubikon's crew, regarding what do to in the situation in which they find themselves in.
That being said, i think there's a deeper meaning to this movie, which is brought on in the end, and which would give the movie a much darker tone, but nothing in the movie points to this being the case, and doesn't bring meaning to the events that happened during the almost 2 hour run anyway.
The movie is very shallow, bringing up the subjects of pollution, decimation of our planet, man-made problems, and so forth, only to never delve deep into them with conversation and debate; the movie focuses mainly around the "right course of action" on part of the crew.
So, there's not much of anything in this movie, other than the back and forth drama between the crew, and some cool visual shots.
It does allow however some thought experiment to imagine how a lifetime aboard an ISS-like structure would be like, with no means to ever going back to Earth, but an almost 2 hour movie for a 5 second "imagine if", is not worth it.
So, i'll expand on the movie and speak very generally as to how the Rubikon could sustain a stranded Humanity, because that's more fun that watching this movie.
The movie presents the problem of not being able to go back to Earth, nor being rescued, apparently ever. So what should a station like Rubikon today need, to provide a future to Humanity, in case the events of the movie we to become real?
Well, first of all, information; aka the internet. The Rubikon would need to have a backup of the internet - problem to be solved? Storage. With increasingly smaller in size and with increased capacity perhaps it isn't that hard to achieve.
Secondly, building materials. The station would need to be able to (at least) maintain itself, by having the means and the materials to replace broken parts. 3D printing would be a must and the minimal hardware available up there. If the station were to be upgraded, much more materials would be needed, so a mining module that could descend to Earth, gather raw material and bring them up to the station for processing would be necessary. And a building module , automated, to build parts. Instead of mining asteroids, we'd first be mining the Earth because it's much closer. Granted there's the "getting raw materials into orbit" problem, and how to mine a planet, but this thesis assumes an already very advanced mining facility network run by AI down on Earth which can bring materials into orbit!
Thirdly, food and oxygen supply. It doesn't seem to be the biggest problem from what i hear on the great vine, both in the movie and in real life. Perhaps it is? If the Earth is to become inhabitable and not able to sustain food cultivation, the station would need to be able to create food for an expanding population. This is where the mining and building module would come in handy, expanding the station's area to build more food producing modules.
From here on, the station could expand, and build whatever modules it needed, giving Humanity a way to not only survive but expand into space.
I know i'm being extremely simplistic, but thinking about this stuff was more fun than watching the movie, so, thanks for reading!
Should you watch it? Meh. If you like movies about space and the kind of thought experiments i did, go for it. Just don't expect to be stunned by anything.