The film's director, Alfonso Cuaron (Harry Potter and the Prisoner of Azkaban, Children of Men), explains how he approached the complicated filming of the long-in-the-works project to USA Today: "We wanted to shoot the whole film showing zero gravity with the actors moving in a choreographic way. This has never been done before. It was a journey of learning. But it looks pretty darn good."
In theaters October 4, Gravity centers around a pair of astronauts struggling to survive after a disaster in space separates them from their ship. Bullock plays Dr. Ryan Stone, a brilliant medical engineer on her first shuttle mission, with veteran astronaut Matt Kowalsky (Clooney) in command of his last flight before retiring. On a seemingly routine spacewalk, disaster strikes and the shuttle is destroyed, leaving the astronauts completely alone -- tethered to nothing but each other and spiraling out into the blackness. As fear turns to panic, every gulp of air eats away at what little oxygen is left. Can they figure out a way to make it home alive?
"[Sandra's character is] confronted with the idea that Earth is so far away. She can see the whole Earth and she doesn't belong to it," says Cuaron. "What is really scary for people is being lost or alone in the immensity of the void."
Producer David Heyman adds of Bullock's physical requirements for the movie, "Sandra had to be in tremendous shape for this kind of filming. When she was not shooting she was either spending time with her son or working out for these scenes."
Cuaron adds that he got a new appreciation for our planet while putting together the awesome effects for the film: "When you see this Earth from outer space with all of its beauty and colors, you don't see all of these separations between these countries. Earth is just one organic, beautiful thing. We happen to live in a very stunning and beautiful place."