It is difficult to pin down exactly how I felt seeing this movie. Some moments had great writing but a lot is left up to interpretation which can be a turn off to some. It is fascinating to watch, but there is actually not a whole lot going on when putting it to paper. I will keep spoilers to a minimum. Click "read more".
The movie takes place entirely on the International Space Station and followed 6 scientists. Three are American and 3 are Russian. Shortly into the film there communications are damaged and nuclear war has broken out between the U.S.A. and Russia and both sets of scientists are given orders to take control of the space station. From there it is constant suspense as trust is put into question and everyone is on edge out of fear of ending up being killed. All the while nobody has any idea of what is going on back on Earth.
Spoilers - Ultimately only two of the six survive and the film ends with them heading back to Earth with many unanswered questions. An open ending.