The astonishing true story of Scotland's most notorious imposter. It's 1993 and 16 year old Brandon is the new kid in school. Soon he's top of the class, acing exams and even taking the lead in the school musical. He's the model pupil, until he's unmasked. What followed over the next two years would become the stuff of legends. The 58-year-old present-day MacKinnon is played by Scottish actor Alan Cumming, who lip-syncs to the words of the real-life interview.