The visuals of Gravity were certainly stunning, and I think this is the first film I've seen to ever implement all three of Newton's laws of motion. I also look greatly forward to see the "behind the scenes" for this movie, as there were many interesting shots - the opening sequence, for one, is one quarter of an hour long, changing perspective all the while. Whoever did the CGI deserve a prize for it.
I'm usually the worst person ever to watch a movie with, picking on whatever I find unrealistic, but I couldn't find any factual inaccuracies in this one (okay, maybe a couple, but it's several orders of magnitude less than usual - After Earth, for instance, was nothing but a cavalcade of stupid). It was very well made in regard to how things work in zero gravity and vacuum. I even found out that the film makers had considered giving all the three visited locations/objects proper orbits, but that ended up wasting half the script explaining orbital mechanics. Kudos for addressing it, though.
Bonus points also go to the lack of an antagonist (apart from sir Isaac Newtwon and a certain Murphy, that is) and a love interest. The addition of either would just have made the movie silly (or sillier, depending on your view).
The five-second glimpse of the interior of the Chinese Space Station is either hilarious, or offensive, or both. The three things you get to see in there are a pair of ping pong rackets, chess pieces, and a room full of rice plants. Way to play on the stereotypes!
Gravity can be compared to Avatar in how it uses the 3D format. Yes, there are a couple of floating objects coming out of the screen, but in general it's quite subtly done.
In total, I'd say Gravity was worth it for the visuals alone. Just make sure to watch it in 3D. I'll be surprised if this one doesn't get an Oscar for best visual effects.
