SOON TO BE A MAJOR MOTION PICTURE STARRING KEIRA KNIGHTLEY, MATT SMITH, RALPH FIENNES AND MATTHEW GOODE FEATURING A NEW INTRODUCTION FROM THE AUTHOR In January 2003, 28-year-old GCHQ translator Katharine Gun received an email from the US National Security Agency that would turn her world upside down. The message requested Katharine's assistance in co-ordinating an illegal US-UK spy operation which would secure UN authorisation for the Iraq invasion. Horrified, she decided to leak the information to the British press. Katharine's decision would change her life forever, as she was arrested under the Official Secrets Act whilst becoming a cause célèbre for political activists. Official Secrets is the definitive account of a whistleblower case that reads like a thriller, and will ask you the same question that was asked of Katharine that cold January day - where do your true loyalties lie? Gold title * OFFICIAL FILM TIE-IN: the book has been adapted for a major motion picture by Academy Award winning filmmaker Gavin Hood, starring two-time Oscar-nominated actress Keira Knightley, Matt Smith, two-time Academy Award nominee Ralph Fiennes and Matthew Goode. The film will premiere at Sundance Festival and is likely to be released in June 2019. * GCHQ CENTENARY YEAR: GCHQ is 100 years old in 2019, and celebrating its birthday with an exhibition at the Science Museum and an official history book, published via Bloomsbury in the autumn. GCHQ interest will be reaching fever pitch, and this dark chapter in its history will be of interest to anyone seeking out a more balanced, less manicured version of the institution's role in British life.

* AUTHORISED ACCOUNT, NEVER BEFORE PUBLISHED IN THE UK: despite the British focus of the story, this account - authorised and with full involvement from Katharine Gun - has never been published in the UK before. A pacy, play-by-play account of the key events, it will be a must-read for all readers interested in espionage. * NEW INTRODUCTION: Katharine Gun, the whistleblower at the heart of the case, has collaborated with the author on a brand new introduction for this movie tie-in edition of the book, framing her experience for a contemporary audience and bringing the reader up to date with the last ten years of her life.