I own this on DVD.
Hands down my favorite movie from the animated DC series. Very well done, I love the story and the ideas. The characters are great, the twists good. Just an all around great movie. Even if it did spawn the... iffy New 52 universe and continuity as a consequence of The Flash's actions. But this movie on it's own is wonderful. It's so far my favorite animated DC film, and my second favorite animated super hero movie. (the first being Marvel's Planet Hulk).
Mistake Status: Thoroughly searched, but will go back through it again in the near future before moving into the continuation of the DC animated Universe