"Spider-Man Turn Off The Dark," which has been in the making for several years and was originally due to open earlier this year, will begin preview performances on November 14 with opening night set for Dec. 21, the show's producer Michael Cohl said. Inspired by the Marvel Comics hero that has also been turned into a series of Hollywood films, the musical will spin a new take on the story of teenage science geek Peter Parker, who is bitten by a genetically-altered spider and wakes up the next morning clinging to the ceiling, the producer said. The musical is expected to be the most expensive in Broadway history, with local media reporting it to cost up to $50 million to stage.