Plus, Cuaron did some pretty amazing shit with single, long takes in Children of Men, and he does so here as well—the way the camera swoops in between debris and tiles and falling astronauts is technically amazing. I have faith.
(One kind of funny note: There is no sound in space. Explosions go boom in this trailer. Cuaron is pissed, and he promises the finished film will not have audible fireballs. Because, if anything, the man who casted George Clooney and Sandra Bullock as geeky astronauts is a man of accuracy.)