I don't think that a Justice league movie would work with the movies they have out right now. I think that they would have to make like Marvel and work up to it. The movies that are out right now are all stand alone movies that are not trying to tie anything together. If DC did take a look at Marvel's game plan then I think that a Justice League movie would be awesome.
I'm trying to figure out which comics came out the month I was born. Even though they have a publication date on them just because they say Nov 62 doesn't mean that they were released in november of 62. Most of the time they were on the shelves two sometimes three months in advance. If someone could help me out I'd greatly appreciate it.