Despite all the good to high ratings, I just couldn't do it. There are 15 countries involved with the ISS. Despite the movie's BS it is a joint venture between US, Canada, the EU, Russia, and Japan.

There are usually 7 scientists and crew. There are specific protocols and those definitely include potential war breaking out on the planet although it's unlikely any of that is public information.
The idea that one of them would agree to kill the other astronauts is insane. Even if they were ordered to, it would be unlikely they would comply. They spend months up there together. As the film shows they know each other from previous stays there. They train together on the ground. It's just implausible. They are trained they have to count on each other, regardless of government affiliation.

The boosters that they supposedly have to have the ground fire up is nonsense also. There's definitely controls for all systems up there. Even the food depletion seems improbable because each so brings in supplies. All that is basic hogwash. The script takes way too many liberties. One or two, sure, one every other turn? Not so much.

The discussions they have with each other in the light of Putin's current effort to recreate a Tzar-dom or the USSR, and that fear in the premise is about the only saving grace.The idea that human nature is so extremely violatile from the suicide murder attempt, to the scheming to leave while everyone is asleep when he could've killed them in his sleep and left anyway,, etc just a very bleak view of humans as a whole.

The acting is pretty good. Even the directing and cinematography are pretty good. But the script sucks, good in concept, terrible in what they ended up with.

1/10.