Heath Ledger's sister clears up rumour linking Joker role to actor's death

"I was really shocked because that was him having fun," she told the audience at a Q&A, according to The Telegraph. "Every report was coming out that he was depressed and that [the role] was taking this toll on him, and we're going, honestly, it was the absolute opposite. It couldn't be more wrong.
"He had an amazing sense of humour, and I guess maybe only his family and friends knew that, but he was having fun. He wasn't depressed about the Joker!”