One unscientific portion of the film

Rating: 9/10 (10 November 2013)

There was a portion of the movie that was controversial: When Sandra and George are tethered to the US space station, but are drifting slowly away. That is, the cable around her ankle is unraveling. Some argued that they were not drifting away but were stationary. I believe that George was drifting slowly away, and because his weight exceeds Sandra's his force (F=mv(2)) overcomes the tether to the space station holding force.
Later, When Sandra Bullock is in the Chinese space station, she has no idea which buttons to push to initiate separation of the landing module. This scene spoiled it for me a little because the rest of the film was so scientifically accurate. I don't believe Eenie-meenie-minie-moe is in the lexicon of the astronauts. Otherwise, a great, suspenseful movie.