He went nuts on Letterman? I would have liked to have seen that but I never watch Letterman.
See post #11. It's a ten minute segment but it feels like an hour. You can pretty much watch the first minute and get a gist of what the whole interview is like. Then watch the last minute when Letterman appears fed up with Phoenix's behavior.
Lots of people argue this was a prank and everyone (except the audience) was in on the joke. If so, I'm not quite sure what the point was.