Keira Knightley turns whistleblower in new Iraq War drama

Actress Keira Knightley turns to the 2003 Iraq War for her latest film "Official Secrets", in which she portrays a British government employee who was fired for leaking a secret US memo in the run-up to the conflict. The 34-year old plays Katharine Gun, a former translator at Britain's global spy centre who was charged with breaking the Official Secrets Act for leaking a US memo seeking London's help in spying on the United Nations. Knightley spoke to Reuters about the role and film, out August 30 in the States and October 18 in the UK. Below are edited excerpts of the interview.