The couple commissioned a comic artists friend of theirs (at http://www.viruscomix.com/subnormality.html) to create a picture of their wedding party. The wedding photographer then had everyone recreate the pose. I think it was done very well.
We were wandering around taking pics and all of a sudden, boom, there's batman walking down the street! We yelled to him for a photo-op and he went and got Cat Woman, Joker, Harley Quinn and the two hench men! Best part: the groom's favorite comic book is batman.