According to ComicBookMovie.com an article about the film lists Alfonso Cuaron, Jonas Cuaron and Rodrigo Garcia as screenwriters for the film. See more

Goofs

As the Shenzhou capsule re-enters the atmosphere, the resulting drag would cause not only the burning on the outside, but terrific G-forces as the capsule decelerates from orbital speeds. Yet a ballpoint pen is seen still floating weightlessly in the capsule, when it (not to mention Stone) should have been pinned to the forward bulkhead. See more