"Days Gone Bye", particularly when Rick encounters a legless walker. "The woman was wearing basically blue stockings and then everything was cleaned out. There is an alarming amount of CGI in the pilot episode and in the whole show, and you would never know it," said Robert Kirkman. Kirkman felt that Stargate Studios, which was chosen by producers to edit the pilot episode, did a splendid job. He stated: "There's a shot where Rick is riding off on the horse and his hat actually blew off, and they really liked that shot, and so they had Stargate go in and digitally put the hat back on his head." Marketing The show's website released a motion comic based on the first issue of the original comic and voiced by Phil LaMarr. The site also posted a making-of documentary, and other behind-the-scenes videos and interviews. In the documentary, Kirkman as well as artist Charlie Adlard expressed pleasure that the show is faithful to the comic and remark on the similarities between the actors and the comic's original character drawings. Several scenes were screened July 23, 2010 as part of the San Diego Comic-Con in 2010. Hurd asserted that "[they] really are doing six one-hour movies", and Frank Darabont insisted that the series would closely reflect the development in the comics. "The path is a very strong template. But we're going to take every interesting detour we feel like taking. As long as were staying on the path of what Robert has done, I don't see any reason not to. If they have patience we'll eventually catch up to what Robert is doing." The Walking Dead debuted during the same week in 120 countries. "Days Gone Bye" premiered in Hong Kong on TVB Pearl on August 30, 2011, while it expanded in international markets during the first week of November. Two weeks prior to its official US premiere, the contents of the episode leaked online. As part of an expansive campaign to advertise and heighten anticipation for the premiere, international broadcasting affiliates of AMC and Fox coordinated a worldwide zombie invasion event days prior to the U.S. premiere. The event occurred in twenty six cities worldwide, in select locations including the Brooklyn Bridge in New York City, Lincoln Memorial in Washington, D.C., Palace of Westminster in London, Bosphorus Bridge in Istanbul, Acropolis of Athens in Athens, and the Museo del Prado in Madrid.