George Clooney and Sandra Bullock in Alfonso Cuaron's 'Gravity'

That is a really interesting list of actresses that were considered for the role; I couldn't imagine many of them subbing into parts for each other because they just seem so different. Not to mention they went from a 37 year old (Angelina) to a 24 year old (Blake Lively) to a nearly 50 year old actress (Sandy). Kind of excited they went with the older actress, which never seems to happen anymore.

they needed some depth
I guess

Can't wait to see this movie.

I'm very curious too

Video - George's new movie Gravity coming out some time next year. His interview with THR. He's been interviewed before where he didn't seem too enthusiastic about the movie. He said it's the first 3D movie he's ever made and hope it's the last.