On July 26, 2020, Zach Schneider unveiled the black shirt Superman at the Justice Con online event; on August 21 of the same year, released the first preview preview; on the 23rd, released the first version at the DC fan meeting The full length of the official trailer, the release of new footage, and the announcement that the total length of the HBO Max online version will be 4 hours, which will be broadcast in 4 episodes, each episode is 1 hour; on the 24th, the public shooting highlights; on November 17, the first trailer is due to music Photographer Fabian Wagner, a Justice League photographer who also participated in the 2020 reshooting work, released multiple photos of the studio in 2016, as well as trial installations and trial photos; on the 18th, the film party resolved the music copyright issue. Repost the trailer. In the trailer, the logo in the 17th second of the opening has been replaced, and a new shot of Superman has been replaced for a few seconds. In the live broadcast of the trailer, director Zach Schneider unveiled the new look of Steppenwolf; on the 20th, Ben Affleck and Joe Manganello released new stills of the film on social media.
On January 18, 2021, it was announced that the film will be broadcast on HBO Max as a complete movie; on the 21st, the full-length look of Darkside was released; on the 29th, the film party released a finalized poster, announcing that it would be on March 18, 2021. HBO Max will be launched on February 1st of the same year; on February 1st of the same year, the director released a new still photos of the steel frame with the line "Martian Hunter" written on the stills-"war is coming"; on the 3rd, the director released a new still photos of the clown; on the 5th, the film announced The rating is R-level. On February 8, a new preview of more than 10 seconds was released, and it was announced that 4K Blu-ray physical discs will be released in 2021 and the digital version will be available for download; on the 10th, "Vanity Fair" released a new version of the clown stills; on the 12th, the film party released Preview preview, Steppenwolf Invasion, Superman in the black battlesuit debut; on the 13th, the preview preview, Darkside, Dessard and the kind grandma appeared; on the 14th, another preview preview, Wonder Woman vs. Steppenwolves, Bats Man appeared in a giant tank, and at the same time released new stills of Bruce Wayne and Alfred Peniworth; on the 15th, the finalized trailer was released, the Joker and Batman met, and the film was confirmed to be in March 2021. On the 18th, the HBO GO streaming media in the United States and Asia, Northern Europe, Central Europe, Spain, Portugal, and HBO began simultaneously; on the 18th, the composer Jonkey·XL released the title The original soundtrack of "The Crew at Warpower"; on the 20th, it was announced that in addition to the 4-hour full film on HBO Max on March 18, 2021, the film was also released on VOD, digital download, and television channelsworldwide on the same day. , Streaming media, etc., but the release date in Mainland China, France and Japan is to be determined; on the 23rd, Vanity Fair released new set photos and stills; on the 28th, released the "Mother Box Origin" clip; March 3, released the official poster ; On the 4th, announce the names of the 6 chapters of the film; on the 5th, release the Batman character poster and character trailer; on the 6th, release the black superman character trailer, and release the Superman character poster at the same time; on the 7th, release the Aquaman character poster and the character trailer; On the 8th, release the Flash character posters and role trailers; on the 9th, release the Wonder Woman role posters and trailers; on the 10th, release the steel frame character posters and role previews; on the 11th, release the characters of Darkside and Steppenwolves Trailer and character posters; on the 13th, a new stills will be released, and all members will be unveiled; on the 15th, the ultimate trailer will be released, and the ancient green light Arango and the Martian Hunter will appear.
