Comment Tyson's is correct but Bad Astronomer's better (Score 5, Interesting) 438
OK, I saw the movie, it is awesome in the true sense of the word awe, and I thoroughly enjoyed it. The special effects are great, the story line simple and engaging. The the effects, especially the interior shots, are very detailed and the few technical issues didn't pull me out of the film to a large degree. While Tyson's comments are correct I think the link below from Bad Astronomer is a more interesting and full description of the issues:
http://www.slate.com/blogs/bad_astronomy/2013/10/04/ba_movie_review_gravity.html