Joaqin Phoenix vs. David Letterman

Drugs? Drunk? Is this normal?

Notable quotes:
"Joaqin: What do you have them on? Do you pump nitrous?
David: The kid in the front is drunk on warm Pepsi."
"David: What were you're days with the Unabomber like?"
"David: I'll come to your house and chew gum."
"David: Joaqin, I'm sorry you couldn't be here tonight."

Update: This one still works. Old link was removed.

Joaquin Phoenix On Letterman 2 11 09 -

Update: This could be part of a mockumentary, therefore, he may be acting. We shall see Joaqin. We shall see...