Olympic gymnast Danell Leyva could be flipping to Broadway. The American bronze medalist from the London Games was so taken with the dangerous flying stunts when he was recently in the audience of “Spider-Man: Turn Off the Dark,” we’re told he expressed interest in joining the show. “He has designs on one of the nine Spidey roles who do the bulk of the swinging around the theater,” says a production source. And apparently, “The ladies of ‘Spider-Man’ are drooling at the possibility.” Reps for the hit show at the Foxwoods Theatre on 42nd Street, which features music by U2’s Bono and The Edge, like the idea, telling Page Six, “The producers are excited about the idea of Danell joining the show.”