Maybe The Mother of All Bad Superhero Movies

Rating: 3/10 (2 December 2017)

What you get is an ueber-generic, predictable and mega-boring superhero movie, one you can leave for 20 minutes and take a beer or something or just make a little nap and after getting back into the movie you won't have any troubles to "understand" what's happening, what's going on.
The script is something like I guess will happen if you feed a machine with 5 different basic stories and the task of the machine is to "create" a new script based on that material.
Zack Snyder did some fine movies: his version of Dawn of the Dead, Suckerpunch, 300, Watchmen, but since Suckerpunch he seems to me he lost all interest in making good movies, as long as the paycheck is big enough, or maybe he is just obsessed with the most boring of all superheroes - Superman (I never understood and still don't understand how it is of any interest to read or watch stories about an invincible guy who just beats up inferior guys, well as long as they don't have kryptonite, for me Superman is something like a "super-bully" beating up most of the time guys who don't stand a chance).
Final words: Justice League won't kill you watching it, just don't expect anything great.