An astronaut and a former space-station director consider the reality of the film's dangers
In Alfonso Cuarón’s new thriller Gravity, Sandra Bullock plays a reluctant astronaut who wants to complete her space walk to repair an instrument as quickly as possible. Her plans are foiled by a series of terrifying events that have surely crossed the minds of astronauts and space junkies. The stunning 3-D cinematography gives viewers the feeling of being in space and fuels the feeling of helplessness. Here are some challenges Bullock’s character faces (spoiler alert) and their likelihood of happening in reality, according to NASA experts.