Forests' worth of writing has already been done on this subject, no doubt, and I'm not sure how much there really is to say. I've been a huge fan of Nolan's take on Batman from the beginning, and despite a few minor flaws, Batman Begins and The Dark Knight are way, way up on my list of movies I could watch repeatedly forever.
The Dark Knight Rises (or TDKR from here on out) is the last of Nolan's trilogy, and picks up 8 years after the death of Harvey Dent in The Dark Knight. Thanks to laws passed in Dent's name, Gotham is cleaner than it's ever been, but Jim Gordon is still torn up a bit by the lie he and Batman fabricated to keep Dent's name clean.