The Dark Knight Trilogy Collection on Instagram: "Batman vs Bane rare fan footage from The Dark Knight Rises. This fight on the snowy “Gotham City Hall” steps was filmed on the front steps of the Mellon Institute of Industrial Research at Carnegie Mellon University in Pittsburgh, Pennsylvania, which doubled as Gotham City Hall. Fan footage gives a rare behind‑the‑scenes look at how this moment was built on set, highlighting the raw choreography, stunt work, and the visible crew and extras that s