According to this, the first preview of Spider-Man: Turn Off the Dark did take place last night. The show was stopped five times for technical adjustments and wound up running three hours and 20 minutes. No word on how long the show actually is…that is, how long it would have run without the unplanned stops. Just for the sake of comparison, Wicked runs two hours and 30 minutes plus a 15 minute intermission while The Lion King runs two hours and 40 minutes and that includes the intermission. The folks seeing Spider-Man now are probably seeing a lot of things that won't be in the show by the time it officially opens on January 11.