2006, after renewing his exclusive contract with Marvel for two more years, Millar launched the most well-known and best-selling work of his career, the 7-issue mini-series Civil War with artist Steve McNiven that acted as the centrepiece of the company-wide crossover storyline of the same name. The story revolved around the passing of the Superhuman Registration Act in response to the death and destruction unintentionally caused by superheroes on a regular basis and the resultant schism in the superheroic community, with Captain America and Iron Man taking opposing sides of the debacle. The storyline had lasting impact on the fictional Marvel Universe and served as the inspiration for the 2016 Marvel Studios film Captain America: Civil War. In 2007 and 2008, Millar attempted to pitch a new series of Superman films to Warner Brothers but the studio went with David S. Goyer's pitch for Man of Steel instead. During that time, he also had two pitches rejected at Marvel, a Blade story with Richard Corben and a Ghost Rider story with John Romita, Jr., as both characters already had ongoing series at the time and Marvel did not believe either property could support more books. In 2008, Millar returned to the Wolverine ongoing series for an extended dystopian storyline "Old Man Logan", illustrated by his Civil War collaborator Steve McNiven. Elements of this story inspired the 2017 20th Century Fox film Logan. Also in 2008, Millar reteamed with The Ultimates co-creator Bryan Hitch for a run on the mainline Fantastic Four series and launched the mini-series Marvel 1985 with artist Tommy Lee Edwards. The three titles, running concurrently, are notable in that Millar purposefully wrote them as interlinked through the introduction of the character Clyde Wyncham, who also appeared in Millar's creator-owned series Kick-Ass that was published under Marvel's Icon imprint. In 2009, Millar returned to the Ultimate Universe with a number of limited series released under the Ultimate Comics: Avengers banner, his last Marvel work to date. In 2011, Millar abandoned work-for-hire in favor of working full-time on his creator-owned properties. Millarworld In 2003, Millar introduced Millarworld, a unified label for his future creator-owned comics. The initial line-up consisted of Wanted (published by Top Cow and subsequently adapted into a feature film starring Angelina Jolie and Morgan Freeman), Chosen (published by Dark Horse), The Unfunnies (published by Avatar) and the unreleased one-shot Run. Another unreleased project was King and