Justice League

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

In the Tunnel fight scene, before Flash starts saving civilians, Flash states how he is afraid. This should have attracted the parademons since they can smell fear, but given multiple civilians much closer to parademons and much more afraid than him, it's perfectly reasonable to assume that their fear was overwhelmingly stronger and completely masked Flash's fear.

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), 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)