Heath Ledger's sister says he 'wasn't depressed about the Joker'

A new documentary about his life, titledI Am Heath Ledger,seeks to put those rumors to rest.

Everything that came to light about the Joker, we were all so confused, Kate said.

She and Bell went on to call speculation that the role made their brother depressed so not true.

Honestly, it was the absolute opposite, Kate went on.

He wasnt depressed about the Joker.

But any concerns that one may have had vanished when you got on the set with him.

I did a couple of scenes with Heath in the first leg of the shoot in London.

I called a friend and he said, Hows Heath?

I said, Hes breathtaking.

Hes going to be astounding.

I could tell just working for five minutes with him.

I hope its an antidote to a lot of the gossip that exists in the world.

And theres some really terrible things about Heath out there, he said.

Your life, your life, my life, everybodys life, should be celebrated.

But in terms of a film as a tribute, I think everybody deserves that.

And I know Heath definitely felt that way about people.

I Am Heath Ledgerwill air on Spike TV Wednesday, May 17 at 10 p.m.

It will then be released digitally and on DVD May 23.

Watch the trailer above.