Heath Ledger's turn as the Joker in 2008's "The Dark Knight" is now the gold standard for comic-book villainy.
But the road to that Oscar-winning performance was messier than most fans realize, and newly resurfaced stories from the film's crew keep pulling back the curtain.
Before a single frame was shot, Ledger was already the internet's punching bag.
When Christopher Nolan announced his casting in 2006, fan forums lit up with complaints that the pretty-boy from "A Knight's Tale" had no business playing Batman's greatest foe.
Some called it the worst casting decision in superhero history.
He locked himself in a London hotel room for weeks, kept a diary of the character's twisted thoughts, and reportedly slept barely an hour a night while developing the voice and the nervous lip-smacking tics.
He told interviewers the role drained him, calling it the most fun he'd ever had and the most exhausting at the same time.
His Joker was grimy, unpredictable, and genuinely unsettling — a far cry from Jack Nicholson's campy 1989 version.
When the film opened in July 2008, critics who had doubted him spent their reviews apologizing.
Ledger won the Academy Award for Best Supporting Actor the following February, becoming only the second performer to win posthumously.
That win, of course, came under devastating circumstances.
Ledger died on January 22, 2008, six months before the movie's release, from an accidental overdose of prescription medications.
The Oscar statue was accepted by his family, and the moment remains one of the most emotional in the ceremony's history.
Almost two decades later, the performance has become something stranger than a great acting job.
It's a permanent fixture of internet culture — endlessly quoted, remixed, and cosplayed at every convention hall in America.
Ask any working actor about the role, and you'll hear the same word: untouchable.
The same fan culture that wrote Ledger off in 2006 now treats his casting as sacred text.
The flip happened so completely that arguing about it feels pointless, which is exactly what happens when a performance stops being a performance and becomes a piece of collective memory.
Our take: Ledger's Joker endures because it cost him something, and audiences can feel that cost through the screen.
The tragedy isn't just that he died young — it's that we'll never know what he would have done next.
Final Thoughts
Every anniversary brings the same flood of tributes, and honestly, they're earned.