<P> However, the writers strike began that same month and placed the film on hold . Warner Bros. had to let the options lapse for the cast, but development was fast tracked once more in February 2008 when the strike ended . Warner Bros. and Miller wanted to start filming immediately, but production was pushed back three months . Originally, the majority of Justice League: Mortal was to be shot at Fox Studios Australia in Sydney, with other locations scouted nearby at local colleges, and Sydney Heads doubling for Happy Harbor . The Australian Film Commission had a say with casting choices, giving way for George Miller to cast Gale, Palmer and Keays - Bryne, all Australian natives . The production crew was composed entirely of Australians, but the Australian government denied Warner Bros. a 40 percent tax rebate as they felt they had not hired enough Australian actors . Miller was frustrated, stating that "A once - in - a-lifetime opportunity for the Australian film industry is being frittered away because of very lazy thinking . They're throwing away hundreds of millions of dollars of investment that the rest of the world is competing for and, much more significantly, highly skilled creative jobs ." Production offices were then moved to Vancouver Film Studios in Canada . Filming was pushed back to July 2008, while Warner Bros was still confident they could produce the film for a summer 2009 release . </P> <P> With production delays continuing, and the success of The Dark Knight in July 2008, Warner Bros. decided to focus on the development of individual films featuring the main heroes, allowing director Christopher Nolan to separately complete his Batman trilogy with The Dark Knight Rises in 2012 . Gregory Noveck, senior vice president of creative affairs for DC Entertainment, stated, "we're going to make a Justice League movie, whether it's now or 10 years from now . But we're not going to do it and Warners is not going to do it until we know it's right ." Actor Adam Brody joked "They (Warner Brothers) just didn't want to cross their streams with a whole bunch of Batmans in the universe ." Warner Bros. relaunched development for a solo Green Lantern film, released in 2011 as a critical and financial disappointment . Meanwhile, film adaptations for The Flash and Wonder Woman continued to languish in development, while filming for a Superman reboot commenced in 2011 with Man of Steel, produced by Nolan and written by Batman screenwriter David S. Goyer . Shortly after filming on Man of Steel was complete, Warner Bros hired Will Beall to write the script for a new Justice League film . Warner Bros. president Jeff Robinov explained that Man of Steel would be "setting the tone for what the movies are going to be like going forward . In that, it's definitely a first step ." The film included references to the existence of other superheroes in the DC Universe, and set the tone for a shared fictional universe of DC Comics characters on film . Goyer stated that should Green Lantern appear in a future installment, it would be a rebooted version of the character, unconnected to the 2011 film . </P> <P> With the release of Man of Steel in June 2013, Goyer was hired to write a sequel, as well as a new Justice League, with the Beall draft being scrapped . The sequel was later revealed to be Batman v Superman: Dawn of Justice, a team - up film featuring Henry Cavill as Superman, Ben Affleck as Batman, Gal Gadot as Wonder Woman, Ezra Miller as The Flash, Jason Momoa as Aquaman, and Ray Fisher as Victor Stone / Cyborg, the latter three in minor roles that became more significant in the Justice League film . The universe is separate from Nolan and Goyer's work on The Dark Knight trilogy, although Nolan was still involved as an executive producer for Batman v Superman . In April 2014, it was announced that Zack Snyder would also direct Goyer's Justice League script . Warner Bros. was reportedly courting Chris Terrio to rewrite Justice League the following July, after having been impressed with his rewrite of Batman v Superman: Dawn of Justice . On October 15, 2014, Warner Bros. announced the film would be released in two parts, with Part One on November 17, 2017, and Part Two on June 14, 2019 . Snyder was set to direct both films . In early July 2015, EW revealed that the script for Justice League Part One had been completed by Terrio . Zack Snyder stated that the film would be inspired by the New Gods comic series by Jack Kirby . Although Justice League was initially announced as a two - part film, with the second part set for release two years after the first, Snyder stated in June 2016 that they would be two distinct, separate films and not one film split into two parts, both being stand - alone stories . </P> <P> In April 2014, Ray Fisher was cast as Victor Stone / Cyborg . He first cameoed in Batman v Superman: Dawn of Justice, followed by a larger role in Justice League . Henry Cavill, Ben Affleck, Gal Gadot, Diane Lane and Amy Adams also reprised their roles from Batman v Superman . In October 2014, Jason Momoa was cast as Arthur Curry / Aquaman and debuted as the character in Dawn of Justice . On October 20, 2014, Momoa told ComicBook.com that the Justice League film would be released first, and that is what they were preparing for . He thought the solo Aquaman film may be Aquaman's origin story . On January 13, 2016, The Hollywood Reporter announced that Amber Heard was in negotiations to appear in the film as Aquaman's love interest Mera . In March 2016, producer Charles Roven said that Green Lantern would not appear in any film before Justice League Part Two, and stated that they "could put Green Lantern in some introduction in Justice League 2, or barring that, a movie after ." Also in March, The Hollywood Reporter announced that J.K. Simmons had been cast as Commissioner James Gordon, and Heard was confirmed to join the cast as Mera . Adams also confirmed that she would reprise her role as Lois Lane in both Justice League films . By April 2016, Willem Dafoe had been cast in an undisclosed role, later revealed to be Nuidis Vulko, while Cavill confirmed that he would return for both Justice League films . In May 2016, Jeremy Irons confirmed he would appear as Alfred Pennyworth . That same month, Jesse Eisenberg stated that he would reprise his role as Lex Luthor, and in June 2016, confirmed his return in an interview with Shortlist magazine . In July 2016, Julian Lewis Jones was cast in an undisclosed role, later revealed to be Atlan, the king of Atlantis . Laurence Fishburne, who portrays Perry White in the DCEU, said he declined to reprise his role in the film due to scheduling conflicts . In April 2017, Michael McElhatton revealed that he had a role in Justice League, which was later revealed to be a bank robber who faces off against Wonder Woman . </P>

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