The Dark Knight film

The Library of Congress announced Monday that the John Travolta musical, “The Dark Knight” and “The Blues Brothers” are among the 25 movies tapped for preservation this year.
Joker's origins in "The Dark Knight" might have been different.
Joaquin used his acceptance speech to honor the late actor, who played the Joker in "The Dark Knight."
Some still see the Batman flick as the greatest superhero film ever made.