Justice League: Crisis on Two Earths

On a parallel Earth our greatest heroes are super powered criminals. "Luckily" our villains are their heroes and one has come to us for help. Can our heroes, so pressed in defending our world, take it upon themselves to save another? This was a fun film, with some great combat scenes, although you need to have some background to the DC universe to really get much out of it. While I've seen this plot many times before, it did have its own little takes to make it unique; however, I greatly disapprove of some of the moral choices that the Batman makes--sorry, this isn't Vegas, what happens on a parallel Earth doesn't stay on a parallel Earth.