Gravity is a 2013 science fiction thriller film directed, co-written, co-edited, and produced by Alfonso CuarÃ³n. It stars Sandra Bullock and George Clooney as American astronauts who are stranded in space after the mid-orbit destruction of their space shuttle, and their subsequent attempt to return to Earth. CuarÃ³n wrote the screenplay with his son JonÃ¡s and attempted to develop the film at Universal Pictures. Later, the distribution rights were acquired by Warner Bros. Pictures. David Heyman, who previously worked with CuarÃ³n on Harry Potter and the Prisoner of Azkaban (2004), produced the film with him. Gravity was produced entirely in the United Kingdom, where British visual effects company Framestore spent more than three years creating most of the film's visual effects, which make up over 80 of its 91 minutes.