“Nerve” (** out of four) was a flashy but empty, monotonous thriller about a high-school senior (Emma Roberts) who becomes immersed in an online game called Nerve, a truth-or-dare game to dangerous extremes, where her life becomes manipulated and analyzed by an anonymous group of watchers. Some interesting commentary about our culture of social media and digital entertainment combined with a few hair-raising sequences may make this worthwhile for its teen target audience but underneath it, the story is thin and gets tiresome after a while. Interestingly, star Emma Roberts is Julia Roberts’ niece and her on-screen boyfriend Dave Franco is James Franco’s brother.