Christopher Nolan’s much vaunted Dark Knight Trilogy consisted of Batman Begins (BB), The Dark Knight (TDK) and The Dark Knight Rises (TDKR). The trilogy has been credited for legitimising superhero movies after the damage done by the campy Batman Forever and Batman and Robin.
Once upon a time, movies based on DC Comics characters were the most high profile and successful comic book adaptations, viz. Batman and Superman. Then, Marvel got their act together and a billion-dollar franchise (without the X-Men, Spider-Man or the Fantastic Four, mind you) was developed!