Vera Farmiga looks a lot like Maggie Gylenhal, based on the quick Google image search I just did. Nolan is certainly giving Bruce Wayne a "type".
Can someone explain this part to me? I don't recall Batgirl being addressed.
...Essen might be shown to be the real mother of Batgirl. Odd, as we thought Nolan already addressed the Batgirl story, in Batman Begins, perhaps not.
Stupid conjecture about the storyline. Making Batman go after a mere serial killer would be lame. Nolan's stories are more epic than that.