In town to promote this weekend’s debut of “District 9,” filmmaker Peter Jackson shared some details about another project he’s serving as producer for—and the sequel that he’ll be getting behind the camera to direct. “The Adventures of Tintin: The Secret Of The Unicorn” is based on the beloved comic strip with a global (and loyal) fanbase, and chronicles boy journalist Tintin’s globe-trotting adventures. Jackson is serving as producer on the first film, with Steven Spielberg in the director’s chair. The pair will reverse the roles for the sequel, and Jackson shared some details about where they’re at with the current film and what fans can expect to see in the follow-up.