Question: R U Professional was a satirical song that partly referenced the 2008 superhero film directed by whom?
Sentence (from "The Dark Knight (film)"): Featuring the DC Comics character Batman, the film is the second part of Nolan's "The Dark Knight Trilogy" and a sequel to 2005's "Batman Begins", starring an ensemble cast including Christian Bale, Michael Caine, Heath Ledger, Gary Oldman, Aaron Eckhart, Maggie Gyllenhaal and Morgan Freeman.
Relevant evidence: No