The impressive backdrop of Eastern State Penitentiary has appeared in numerous films. I didn’t know this, but the above sign in the prison noted that the below films have sections filmed there:
(i) 12 Monkeys
(ii) Transformers 2 : Revenge of the Fallen
(iii) Return to Paradise
(iv) Outside the Wall
The last film is perhaps one of the most interesting (not that I’ve actually seen the film) as it was filmed when the prison was still in use.