This film is utter tripe. From what I can gather it has achieved success because of 2 factors: 1. It has a "deep" story about a woman regaining the will to live 2. It has some good 3D effects.

To address the second first, if a film cannot stand without its effects, it is not a good film.

The second point might be true, but it is utterly lost in the physical nonsense and painfully fabricated situations.

Synopsis of the film below:

Several astronauts on a spacewalk.

Unlukily, the Russians shoot down a satellite, which causes a Flying Cloud of Debris.

Luckily, it's no concern.

Unluckily, it escalates and becomes a concern.

Luckily, they finish what they are working on and start to evacuate.

Unluckily, the Cloud destroys Everything In Space.

Luckily, the pretty one and the handsome one survive.

Unluckily, everyone else dies.

Luckily, the ISS is just over there, and the handsome one has a jet-pack.

Unluckily, the pretty one is running out of oxygen.

Luckily, the handsome one has plenty.

Unluckily, he runs out of fuel just as they arrive.

Luckily, the pretty one catches the ISS on the way past.

Unluckily, she lets go of the handsome one, so he dies.

Luckily, she gets into the station just as her oxygen runs out.

Unluckily, it goes on fire.

Luckily, she escapes in the remaining pod.

Unluckily, it's tangled with the ISS.

Luckily, she cuts it free.

Unluckily, the Cloud of Death comes back.

Luckily, she gets away as the ISS explodes behind her.

Double luckily, there's another space station which she can easily get to. Magic!

Unluckily, the pod is out of fuel.

Luckily, the handsome one comes back in a hallucination to tell her how about some other fuel.

Unluckily, when she gets to the Chinese station, it's re-entering.

Luckily, she gets into the escape pod just in time.

Unluckily, it's all in Chinese.

Luckily, she presses a few buttons and it returns her safely to Earth.

Unluckily, it sinks in the sea.

Luckily, she gets out.

The end.

If you want a film about astronauts overcoming serious disaster in space, watch Apollo 13. It is more gripping, and true, so it actually makes some sense.