Webas reported by deadline, hbo documentary films and sky are behind david holmes: The boy who lived, which will tell the story of the prodigious teen. The boy who lived, will shine a light on the “tragic” incident. Webin a new hbo documentary, david holmes: The boy who lived, we meet holmes, who played daniel radcliffe's stunt double in the harry potter films before he. Webdaniel radcliffe has produced a documentary about his harry potter stunt double, who was paralysed while filming the blockbuster. David holmes sustained a.