Me neither. Justice League is... just... bad. DC wide issue though really, a lot of characters that just don't lend themselves to popularity like Marvel has been able to. You've got Batman, sure (a strangely cinematic superhero, works far better than many others on film), and Superman (the archetype, really)... and then it all goes wrong.
I mean the traditional line up of the Justice League is
Batman, fine.
Superman, fine (though I'm not a fan)
Green Lantern, stupid and one failed movie already.
Martian Manhunter, a really, really dumb character that you genuinely have to cringe at the thought of on screen.
Wonder Woman, not the greatest
The Flash... yeah, ahem...
And ****' Aquaman.
It just doesn't work somehow. It's somehow just inherently more silly than the Avengers, which isn't exactly serious stuff to begin with.
Thankfully, I don't think they'll do it. I don't think they could manage to do the Avengers style formula as the only characters there anyone is even vaguely going to buy, or care about, in enough numbers, are the ones that already can sell movies on their own, Batman and Superman.
And it'd be a long way off either way. Despite there being constant whispers about writers and scripts being knocked up.
As for the Dark Knight Rises, I'm still convinced that the film is going to leave Christian Bale's Bruce Wayne unable to be Batman again (dead/broken), but he has apparently been quoted this week as saying he'd do another film if needs be. Throwing people off the scent or am I just wrong?