<P> In May 2017, Snyder stepped down during post-production of the film to properly deal with the death of his daughter . Joss Whedon, whom Snyder had previously brought on to rewrite some additional scenes, took over to handle post-production duties in Snyder's place . In July 2017, it was announced the film was undergoing two months of reshoots in London and Los Angeles, with Warner Bros. putting about $25 million into them (more than the typical $6--10 million additional filming costs). The reshoots coincided with Cavill's schedule for Mission: Impossible--Fallout, for which he had grown a moustache which he was contracted to keep while filming, so Justice League's VFX team used special effects to digitally remove the moustache in post-production . Warner Bros. later announced that Whedon would receive a screenwriting credit on the film alongside Chris Terrio . </P> <P> In March 2016, Hans Zimmer, who co-composed the score for Man of Steel and Batman v Superman: Dawn of Justice, stated that he had officially retired from the "superhero business". Junkie XL, who wrote and composed the soundtrack of Batman v Superman: Dawn of Justice with Zimmer, was originally scoring the film . In June 2017, Danny Elfman was announced to have replaced Junkie XL . Elfman had previously composed the films Batman and Batman Returns, and the theme music for Batman: The Animated Series . Elfman confirmed that he would use the Batman theme music from the 1989 film for Batman in the film, and would also briefly use John Williams' Superman theme during "a dark, twisted moment" in the film . The film features a cover of Leonard Cohen's "Everybody Knows" performed by Sigrid, "Icky Thump" performed by the White Stripes, and a cover of the Beatles' "Come Together" performed by Gary Clark Jr. and Junkie XL . </P> <P> Justice League held its world premiere in Beijing on October 26, 2017, and was theatrically released in North America in standard, RealD 3D and IMAX on November 17, 2017 . Justice League was released on Digital HD on February 13, 2018, and was released on Blu - ray, Blu - ray 3D, 4K Ultra-HD Blu - ray and DVD on March 13, 2018 . </P> <P> Just after the movie got released in theaters, there have been rumors of an official Directors Cut of the movie existing, proving to be what Zack Snyder actually wanted the movie to be . However, this has not been confirmed by Snyder himself, as of yet . </P>

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