Unlawful Killing was finished on 9 March 2011, after three years of research and production, and is submitted at a time when British royalty is at the centre of the news. It is the true story of the violent death of Princess Diana, and the subsequent cover-up by the British Establishment, culminating (after a decade of delay) in an Inquest held at the Royal Courts of Justice in London. Keith Allen (father of Lily Allen) was at the centre of the inquest, covertly observing proceedings in the courtroom and amongst the press. His groundbreaking documentary recreates key moments from the inquest, and demonstrates how the cover-up was perpetrated. It shows how vital evidence of foul play was hidden from public scrutiny, how the royal family were exempted from giving evidence, and how journalists, particularly those working for the British media, systematically misreported what was happening. This is not about a conspiracy before the crash, but about a provable cover-up after the crash.