Jonas Cuaron, George Clooney, Sandra Bullock and Alfonso Cuaron
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Gravity stars Clooney and Bullock hit Venice Film Festival red carpet

The 70th Venice Film Festival has officially opened, with the stars of opening film Gravity among those walking the red carpet.

George Clooney and Sandra Bullock signed autographs and posed for photographers before the world premiere of the film.

The sci-fi thriller tells the story of two astronauts who are cast into deep space when debris destroys their shuttle.

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