Keira Knightley stars in this gripping real-life political thriller based on the story of whistleblower Katharine Gun. Charged with breaking the Official Secrets Act in Britain, and facing imprisonment, Katherine reaches out to Ben Emmerson (Ralph Fiennes), one of the top lawyers in the country, to take her case and defend her actions. With her life, freedom, and marriage threatened, Katharine risks everything by leaking a classified email to the press in the hopes that this simple act could help halt an