Do you want to see superman pull Atlantis out of the ocean in a stand off with aquaman? Do you want to see him team up with Sinestro and take on the entire Green Lantern Corps? Do you want to see superman break batmans back? Murder the black Canary, the green arrow, Martian manhunter, joker and many many more? Do you want to see Alfred pennyworth fist fight superman and win? If you want to see those great moments from the injustice comic and more then you should probably read the comic because none of it made it into this movie.
This movie follows the comic for a fair bit of the beginning, but then jumps the gun and does whatever it wants to bering a quick ending in under two hours of film. The comic were supposed to be a story that took place over 5 years. They could have done a series of movies and had some truly spectacular moments, and they jusy didn't. Honestly very disappointed.