Short answers, pulled from the story.
The 13th of November 2017 marked the premiere of Justice League at the Dolby Theatre in Hollywood. The film was released in the United States four days later on the 17th of November 2017.
Director Zack Snyder stepped down from his post-production duties in May 2017 following the suicide of his daughter Autumn. Warner Bros. Pictures then hired Joss Whedon to take over the helm and oversee a massive reshoot campaign.
The studio spent an additional $25 million on reshoots, bringing the total production budget to an estimated $300 million. This figure made it one of the most expensive films ever made during its production cycle.
The film grossed $661.3 million worldwide against an estimated break-even point of $750 million. This financial performance resulted in a loss of around $60 million for the studio and was deemed a box office bomb.
Zack Snyder officially confirmed in May 2020 that his original cut would be released for HBO Max in 2021. The four-hour version cost over $70 million to complete and included special effects and the return of the original cast.