I was at Heinz Field on Sat and I wanted to clarify a few points from your earlier posts. The Tumblers that were there were not filmed at all. They brought them out as a fun distraction for everyone in the stands (official word from the extras organizers in a thank-you e-mail is over 18,000 were there). Once to fire off a "shot" from the giant turret (a charge in the field exploded) and once carrying Pittsburgh Steeler Hines Ward who is playing Gotham Rouge Heinz Ward in the film (Ben Roethlisberger and former Coach Bill Cowher are also on the Rouges). We were also told that Bane has stolen the Tumblers, though no further details were given on that.