(NBC News) In summary, "Gravity" can be described as "Sandra Bullock and George Clooney stranded in space."
Yet it's much more than that, thanks to director Alfonso Cuar?n's vision, which immerses audiences deeply in the space walkers' peril.
But for star Bullock, the experience of making the movie -- for which she was filmed in narrow lightboxes, against green screens and even in a tank of water, often all by herself -- was an "unnatural experience."
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