The Grey’s Joe Carnahan has signed on to script the upcoming Uncharted movie Long in development, Sony Pictures‘ plans for an Uncharted movie appear to be moving forward today as Variety brings word that Joe Carnahan (Narc, The Grey) has boarded the project as a screenwriter. The trade notes that Carnahan does not, at this stage, plan to direct as he’s committed to helming Bad Boys 3 for the studio.