The story of the computer hacker Gary McKinnon and his long battle against extradition to the US is to be turned into a feature film. It will tell the story of how a young man hunting for evidence of UFOs found his way into the Pentagon's system and carried out what US authorities described as "the biggest military computer hack of all time" and then faced the possibility of a long sentence in a US high-security prison. The film, The People v Gary McKinnon, will be directed by Paul McGuigan, who made Gangster Number 1 and Lucky Number Slevin. The screenplay is by Peter Harness, who has written scripts for Wallander, Doctor Who, McMafia and Sherlock as well as the film Is Anybody There? It will be produced by Wall to Wall Media and Warner Brothers.