Dr. Ryan Stone (Sandra Bullock) and Matt Kowalsky (George Clooney) must work together as a team to make it back to Earth in the fourth TV spot for Gravity. Alfonso Cuarón directs this highly-anticipated thriller set in the expanse of outer space, with these astronauts cut off from communicating with the world below, and their oxygen reserves depleting. Take a look at the latest footage before Gravity lands in theaters October 4.