Justice League dealt with a number of issues during its production process, from Joss Whedon taking over the movie during post-production following Zack Snyder’s departure due to the death of his daughter, to Henry Cavill being unable to shave his Mission: Impossible – Fallout mustache for the reshoots, resulting in CGI being used to awkwardly cover it up for his Superman scenes.
It’s a shame that a movie like Justice League, which could have been one of the biggest superhero movies of all time, ended up being the least popular DCEU movie commercially.
Critically, Justice League earned a better overall reception than Batman v Superman: Dawn of Justice and Suicide Squad, but it still walked away with more negative reviews than positive ones, which certainly could have played a role in not as many people going to see it in theaters.