Basically what I said above. 2 hours of drifting in space and dialog or is Cuaron gonna give science the double bird and opt for throwing everything space has to kill people at the astronauts for the sake of entertainment, after all this is supposed to be a very visual based movie. Because of that I wonder what will be stealing the scenes as there aren't many things to stare at from there perspective(besides the Earth and Sun and distant stars but you know what I mean like nebulas and multiple spacecrafts in Kubrick's 2001) I am cautiously excited but if that crash event is the most exciting scene in the film, surely it will take an emotional/fearful turn to keep viewers from boredom?
Good characters would have to fill that time as well but that poses a huge problem for me personally because I am not a huge fan of Bullock, especially in a leading role(I don't think she is bad, just forgettable for me) Admittedly Jolie would have been worse IMO, that nearly put me off completely. When Bullock was confirmed for the role, I had a similar reaction that Bateman's character in Arrested Development had whenever someone mentioned Angie, "who?" and "her?" but Clooney and Cuaron/Lubezki can make up for it. And who knows, she may put a memorable performance. I just think Cuaron could have got a better leading actress instead of chasing Bullock and Angelina, the very last names I'd have in mind for this particular role.