Comic-Con 2013: Warner Bros. Panel Highlights Dan Koelsch, July 21, 2013 The biggest panel day of this year’s San Diego Comic-Con was Saturday, and it kicked off with a bang with Warner Bros. and their films The Seventh Son, Godzilla, Warcraft, 300: Rise of an Empire, Gravity, The Lego Movie, Edge of Tomorrow, and the Man of Steel sequel. You may…