There's been plenty of positive buzz surrounding Alfonso Cuarón's Gravity lately, whether it was out of the Venice Film Festival or the mouth of James Cameron.  This new trailer shows why.  In previously-released glimpses, we see the terror that unfolds as astronaut Dr. Ryan Stone (Sandra Bullock) careens off into space after an accident about the International Space Station.  Her only lifelines are Matt Kowalsky (George Clooney) and her own ability to keep her wits.  This latest cut gives an extended look at the relationship between the two scientists as well as some more background on Stone and some truly sensational space-based effects.  Hit the jump to watch the new trailer.  Gravity opens October 4th.

Watch the new trailer for Gravity below:

Here’s the official synopsis for Gravity:

Sandra Bullock plays Dr. Ryan Stone, a brilliant medical engineer on her first shuttle mission, with veteran astronaut Matt Kowalsky (George Clooney) in command of his last flight before retiring. But on a seemingly routine spacewalk, disaster strikes. The shuttle is destroyed, leaving Stone and Kowalsky completely alone–tethered to nothing but each other and spiraling out into the blackness. The deafening silence tells them they have lost any link to Earth…and any chance for rescue. As fear turns to panic, every gulp of air eats away at what little oxygen is left. But the only way home may be to go further out into the terrifying expanse of space.