This Joaquin Phoenix thing

[Nistelrooy10]

Whether he's high or faking it... is hilarious

 

[Eyepopper]

I think he's just annoyed at the audience guffawing at every word letterman utters...

 

[bazalini]

Jesus Christ that is funny

 

[DanH]

apparently it's a set up. i laughed though.

 

[samabachan]

Something to do with this supposedly.

http://www.imdb.com/title/tt1356864/

 

[Rood]

there is a thread on exactly the same thing just a few lines down

https://www.redcafe.net/f27/letterman-rips-joaquin-phoenix-shreds-235868/