Christopher Nolan is particularly haunted by one line of dialogue from The Dark Knight – and it's probably the film's most famous quote.
"I'm plagued by a line from The Dark Knight, and I'm plagued by it because I didn't write it," Nolan told Deadline. "My brother [Jonathan] wrote it. It kills me, because it's the line that most resonates. And at the time, I didn't even understand it. He says, 'You either die a hero or you live long enough to become the villain.' I read it in his draft, and I was like, 'All right, I'll keep it in there, but I don't really know what it means. Is that really a thing?' And then, over the years since that film's come out, it just seems truer and truer. In this story, it's absolutely that. Build them up, tear them down. It's the way we treat people."
