Claim: The Dark Knight is dedicated to the memory of Keith Ledger.
Evidence: 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.
Ledger died on 22 January 2008 from an accidental intoxication from prescription drugs.
The film is dedicated to the memory of Ledger , who died on January 22 , 2008 , some months after the completed filming and six months before the film 's release , from a toxic combination of prescription drugs , leading to intense attention from the press and movie-going public.