The delay-plagued Spider-Man: Turn Off the Dark will open in January instead of Dec. 21 because more work is needed on the $60-million musical, The New York Times reports.

The news comes a day after inspectors from the New York State Department of Labor visited the Foxwoods Theatre in Manhattan to examine the flying and safety devices for the production, the most expensive and most technically complex show in Broadway history. According to a department spokesman, the producers were unable to present all of the two dozen aerial maneuvers for the inspectors, requiring them to return before performances an begin. Previews had been set to start on Nov. 14.

Although the inspection had been scheduled for months, it occurred just two weeks after a performer broke two wrists during a failed aerial stunt, bringing to light concerns about the show's safety. The Times reports that the Department of Labor and Actors' Equity have opened investigations into the maneuver, which reportedly has injured two actors.

Spider-Man initially was scheduled to begin performances in February, but "cash-flow obstacles" in August 2009 triggered delays that eventually led to the loss of original co-stars Evan Rachel Ward (Mary Jane) and Alan Cumming (Green Goblin). The budget has ballooned from $35 million to $50 million to what's now reported to be between $60 million and $65 million.

Directed by Julie Taymor and featuring a score by Bono and the Edge, Spider-Man: Turn Off the Dark stars Reeve Carney, Jennifer Damiano and Patrick Page.