ComicBook.com says
Because of various tragedies and unfortunate events that befell the stars of The Dark Knight, there was an internet rumor several years back that The Dark Knight was cursed. Some of the tragedies blamed on The Dark Knight curse included the death of a special effects technician in a truck accident during a Batmobile test run, Heath Ledger’s death due to an accidental prescription drug overdose, Morgan Freeman’s hospitalization due to a car accident, and Christian Bale’s arrest after a dispute with his mother and sister.
Christian Bale took on the role of Batman for three motion picture releases, however it seems the actor wasn't pleased with his performance.
SBV: "April 1 starts strong with The Color Purple and Goodfellas. The HBO drama series The Nevers premieres on April 11. And then on April 16, the latest Mortal Kombat film premieres. If you like superheroes, Green Lantern and The Dark Knight Rises are also coming in April."
Is this one of the greatest trilogies of all time?
I wouldn't be surprised if this list was the norm for film trilogies
How come there are only entertainment curses in football? You don't see NHL cover athletes completely sucking do you?
Overdosing on prescription drugs you take at your own will, and having a dispute with your mother and sister are because of a curse?