Expected it when I saw what story it was based on. Good to hear I guessed right about it!
I honestly went in with some pretty low expectations, unsure about turning a one issue story into a movie and the odd art style (seriously, they go out of their way to make Superman/Batman: Doomsday look like s*** to emulate Michael Turner, but don't even attempt to emulate Doug Mahnke?), but the story was translated excellently, the dialogue and voice acting was top notch, the fights were excellent and the animation quality was the best they've ever had. It's an easy 5/5.
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