Justice League: War (Blu-ray release 2014-2-4) tells a new version of how Justice League is formed, adapted from the comic Justice League: Origin.  Not being a comic reader, even I can notice the personalities and the looks of the superheroes are changed.  These changes, especially with Superman killing enemies with no hesitation and no remorse, feel strange.  The story is basically an alien invasion plot.  We get to see the new origin of Cyborg, and the superheroes meet each other for the first time.  Once the action starts, it never stops until the end.  The action is great here, making it an entertaining animated action movie.  Although there is not much plot or depth, it is at least better than some of weaker entries in the DC Universe Animated Original Movies.