This may be the scariest video you see all week.

Warner Bros. just released a new trailer for its upcoming flick "Gravity" -- and it looks absolutely terrifying. 

Starring Sandra Bullock and George Clooney, the movie looks like a sci-fi "Open Water," showing what happens when two astronauts are stuck floating through space with limited oxygen.

The clip above shows just :90 of a 17-minute continuous open shot ... a shot that is sure to be one of the most intense things ever.

Bullock recently talked about the unconventional filming technique for the flick at Comic-Con, revealing that she spent 10 hours a day locked in a 9-by-9-foot cube by herself.

"They had me strung up for 8-10 hours day," she said. "I learned to meditate up there. Alfonso gave me boxes of CDs with sounds that would set the tone for a scene and help me stay in the right head space."

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