In 1976 Star Wars was the first movie presented at Comic-Con. Now the four-day event, with about 125,000 attendees, is a huge marketing bonanza -- not just for comic-book movies, sci-fi, fantasy, horror and animation but practically any movie or TV show loosely connected to this fan base. We hear what the people at this year's Comic-Con think about Hollywood and speak with long-time studio "genre consultant" Jeff Walker, who's lived the geek dream, working for and with the studios on movies' publicity campaigns.