By Kate Ward
Updated December 16, 2010 at 10:04 PM EST

Image Credit: Mathew Imaging/WireImage.comGeorge Clooney has landed at Gravity. The actor’s rep confirms to EW that he will star in Warner Bros. and Legendary Pictures’ 3-D space thriller Gravity as an astronaut that lives through a disaster. The film, directed by Alfonso Cuaron, co-stars Sandra Bullock; Clooney is filling a role vacated by Robert Downey Jr., according to The Hollywood Reporter.

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