In another setback for a production that has been plagued with delays and spiraling costs, the organizers of the Broadway musical ‘Spider-Man: Turn Off the Dark’ said Thursday that the official opening has been pushed back to Jan. 11 from a previously scheduled opening of Dec. 21. … The musical, whose budget is estimated to be well above $55 million, has seen opening dates come and go. At one point, the musical was supposed to open Feb. 18, 2010, but budgetary issues and other problems forced the production to be postponed. Industry watchers have stated that recouping costs will be difficult and could take years.