Liga de la Justicia

When the film was shown in Iceland, which uses subtitles rather than dialog dubbing for films with non-Icelandic languages, Jason Momoa's pronunciation of his single line of Icelandic was so unintelligible that it had to be subtitled into Icelandic (often resulting in audience laughter).

A powerful bomb that is about to destroy four "city blocks" from inside a bank, does not explode harmlessly just above the roof of that bank.

There is a scene in the closing credits: Superman and the Flash race each other.

In March 18, 2021, after almost four years of online petition and fan pressure, Warner Bros. released the original director's cut of Justice League, renamed Zack Snyder's Justice League. The cut was more than two hours longer than the theatrical version, including additional scenes, alternate takes, detailed expositions, more character backstory and even a different camera setup and musical score by Junkie XL. Also, the new version introduced characters that were cut from the theatrical version like Iris West (Kiersey Clemons), Antiope (Robin Wright), Ares (David Thewlis), King Arthur (Francis Mcgee) Martian Manhunter (Harry Lennix), DeSaad (Peter Guinness), Cyborg's mother Elinore (Karen Bryson), Ryan Choi (Zheng Kai) and Justice League's archenemy, Darkseid (Ray Porter). The cut was rated R for violence and language, unlike the theatrical version, which was PG-13.

Edited into 365 days, also known as a Year (2019)