EXCLUSIVE : David Holmes , Daniel Radcliffe ’s  Harry Potter  stunt double and close friend, has turned the story of his tragic accident during stunt tests for  Deathly Hallows : Part One that left him paralyzed from the waist down into a stage play, Deadline can reveal. The Boy Who Lived  (the title comes from the first chapter of the firs t Harry Potter  novel) is currently in development and has been workshopping all this week at the Olivier Award-winning Kiln Theatre in Kilburn, North West London. Producer Paul Taylor-Mills tells us exclusively that  The Boy Who Lived  will premiere at the Kiln Theatre in 2027 and the plan is for Holmes to portray himself. David Holmes John Wilson The production is based on director Dan Hartley’s 2023 HBO/Sky documentary  David Holmes: The Boy Who Lived  and on an account written by Holmes of his life before and after the accident at Leavesden Studios in January 2009. The memoir was published two years ago.…