A short time ago in cyberspace not so far away … nerds were up in arms over the new lightsaber seen briefly in the ” Star Wars: The Force Awakens ” trailer — but the movie’s director says he’s got saber support from Hollywood’s biggest nerd. J.J. Abrams was on his way out of Bad Robot’s studio … when he told TMZ photog he’s not surprised at the cross-saber backlash — but he also knew lots of fans would think it’s cool. But Abrams says one celeb nerd with major pull already gave him two wookie thumbs up.