This issue is a variant of Justice League (DC, 2011 series) #1. There exist further variants.
1 in 200 variant cover. Same artwork as the 1 in 25 variant cover by David Finch but with no colors.
First appearance of Superman, Victor Stone and Green Lantern. Batman first appeared in Flashpoint (DC, 2011 series) #5.
Jim Lee's new designs for the Justice League. Includes a breakdown of the cover.