[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/images/09/06/art.stewart.jpg%5D A long line, something of a Dragon*Con mainstay, stretched across the third floor of Atlanta, Georgia's, Marriott Marquis hotel, all the way into the skywalk which connects into the Hyatt Regency across the street on Saturday. Another mainstay of the convention: asking "What is this line for?" was repeatedly answered with "Patrick … Continue reading Stewart may return to 'X-Men,' closes door on 'Star Trek'