Alfred: You are as precious to me as you were to your own mother and father. I swore to them that I would protect you, and I haven't.
When Catwoman is with Bruce Wayne at the charity ball, she has red painted nails. After stealing the Lamborghini Aventador, she is lacking nail varnish, even though she is still wearing her charity ball mask.
Many of the Gotham Rogues are played by members of the Pittsburgh Steelers. Ben Rothlisberger and Hines Ward can be seen during the pan of the team during the National Anthem. The game is also being played at Heinz Field, home of the Pittsburgh Steelers.