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Ian Brady, the notorious serial killer, was portrayed by Andy Serkis in the 2006 film "Longford." The film explores the events surrounding the Moors Murders, a series of brutal killings committed by Brady and his accomplice, Myra Hindley, in the 1960s. Serkis's portrayal of Brady captures the character's chilling intelligence and manipulative nature, highlighting the complexities of a mind capable of such heinous crimes.