Random thoughts:
4-hour runtime contributes to the new characters and their arcs although they're cliche and uninspired.
Visuals (CGI) are still bad-ish at times and the fight of Wonder Woman vs some random Brits had those Matrix 2 ragdoll moments.
The music was alright but I would have liked more variations in leitmotifs for various themes.
Steppenwolf had a cool design but a little too overdone and his armor distracts with its movements and light reflections.
The best part of the whole film was the epic battle (battles) at the beginning and the movie never reaches anything as exciting or visually arresting.
Zack Snyder's famous or infamous slow-mo is both of those things as sometimes it drags very much.
When Superman gets back from the dead, his body looks kind of fake. It had a certain fake glow which was very weird and the whole scene screams green-screen room. A couple of other scenes had a similar look, like the one with Supes and his mom in the corn-field.
Joker was still incredibly irritating and the whole epilogue scene was well confusing. (The whole old/young Lex Luthor and the Arkham Asylum thing)
All in all, pretty entertaining for a 4-hour movie.
Review of Zack Snyder's Justice League
