Codex Pictures Ultramarines Promotion Tags: Codex Pictures, Exhibits, Social Media. Grand Central Marketing integrated digital advertising, e-PR, social media and live events to promote Codex Pictures’ special-edition DVD box set of Ultramarines: A Warhammer 40,000 Movie. Read Codex Pictures Ultramarines Promotion... HBO Rock and Roll Hall of Fame “25th” Exhibit Tags: HBO, Exhibits, Social Media. GCM brings the Rock and Roll Hall of Fame to New York City’s Time Warner Center. Read HBO Rock and Roll Hall of Fame “25th” Exhibit... Germany “A SENSE-Sational Experience” Expo Tags: Germany, Exhibits, Public Relations/ePR. Grand Central Marketing presents the best of German foods, arts, sports and science at Vanderbilt Hall, NYC. Read Germany “A SENSE-Sational Experience” Expo...