If you like batman, skip this and go watch the 'Son of Batman' DC animated movies instead. This starts strong like the creators were die hard fans- who then handed the movie off others.
Skipping lore errors or bad characters (hated portrayal of Damien). movie just goes straight off the deep end. Giant Mecha (why is poison ivy is using coal and robots), magical monkeys and bats, and a 'batman cult'. Batman for some reason forgets all his combat skills and has to re-learn from ninjas and has to use a sword.
A lot of people didn't like the animation or voice acting but I had no problem with it, I really did love the art style (except that weird water colored bit). Would have been great if the story wasn't so insane.