Spider-Man, Spider-Man: he’ll float back down to the stage when he damn well can. Last night’s Spider-Man: Turn Off The Dark preview was apparently fraught with technical issues, keeping audience members in their seats for about three and a half hours thanks to five long delays and an extended piano number from the Green Goblin. Here’s a timetable based on the rather kind accounts of Spider-Man’s preview (a six-year-old liked “parts” of it!). 6:30pm - Show is scheduled to begin. 6:54pm - Show begins. 7:2opm - The evil Arachne is left above the crowd for seven minutes. “Give it up...