Woooah, what the hell is going on?
Apollo 13 is great, I won't bash it, but Gravity is better, Gravity is one of the movies with less physical and scientific inaccuracies if any, included Apollo 13, the biggest inaccuracy and it isn't physical nor mechanical was the orbit of the different space stations, that's about it.
Hair wasn't floating because she had short hair wtf?
You CAN do all the things she did.
The only mechanical inaccuracy I could find was when she used the fire extinguisher, and not because of the extinguisher, but because she traveled in a straight line when she should have done so in diagonal, keeping the same horizontal momentum as the pod, other than that everything is recreated perfectly, if you think Gravity is too fantastic, you don't have your basic mechanics knowledge in order
Cuarón did an amazing job conveying the sense of dread and hopelessness of being in a lifeless hard as **** environment like space, and Bullock acted exactly how I see a rookie astronaut acting in that same situation, when she got rocketed during the 1st debris rain and was caught in the inertia, spinning uncontrollably I felt I was going to pass out, picturing myself in that exact same situation.
So, people who said she was annoying, why? Really, why? Is it because a person in desperation and hyperventilating uncontrollably is annoying? Well duh!
Gravity deserves all the praise it gets imo.