Warner Bros. has released the first trailer for director Alfonso Cuaron's Gravity and it looks incredible.   The story centers on an astronaut (Sandra Bullock) who is stranded alone in space following a catastrophic event aboard a spacecraft.  George Clooney also stars, but Bullock is rumored to spend the majority of the screentime in the film utterly alone.  The pic was originally slated to open last year, but was subsequently pushed back so that more time could be spent on the visual effects.  Based on the trailer, the time was well spent.  Gravity looks like it could be one of the year's best films.

Hit the jump to watch the trailer.  Gravity opens in 2D, 3D, and IMAX 3D October 4th.

Check out the first full trailer for Cuaron's Gravity below:

Here’s the 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.

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