Merrick here...
BELOW: video captured by extras during the filming of THE DARK KNIGHT RISES this weekend at Heinz Field in Pittsburgh.
Nothing too pointed here in terms of spoilers, but in a vague way this footage hints at what appears to be a significant movement in the film (one we don't know much about just yet, although some conjecture connects this sequence to an element of the recently released teaser - Gary Oldman...). Those wishing to remain wholly unspoiled may wish to avoid the embed below.
-- Small spoiler break due to title of embed - scroll down to see the embed. --
--- follow Merrick on Twitter ! --
