At the time, Phoenix was promoting his 2010 mockumentary “I’m Still Here,” which followed him retiring from acting and ...

The actor was promoting the mockumentary 'I'm Still Here' when he delivered one of the strangest interviews ever recorded for ...

Joaquin Phoenix is looking back at the rollercoaster of awkwardness that etched his 2009 interview with David Letterman in ...

“When I came on this show with Dave, I originally did the pre-interview in character and I realized that it was just a little ...

Joaquin Phoenix memorably appeared on 'The Late Show' to speak with David Letterman in 2009 while in character for a 2010 ...

Sixteen years after his previous 'Late Show' appearance, the 50-year-old actor is opening up on his 'uncomfortable' interview ...

More than a decade on, Joaquin Phoenix is still sorry for the cringe promotion of his mockumentary “I’m Still Here.” While in ...

Joaquin Phoenix appeared on David Letterman's show in character when he was filming a mockumentary titled I'm Still Here with Casey Affleck.

He appeared in character for his Casey Affleck-helmed mockumentary 'I'm Still Here', which saw Phoenix quitting acting to ...

On Tuesday night, the star said that he originally did the pre-interview in character and “I realized that it was just a ...

Joaquin Phoenix says he regrets his infamous interview with David Letterman, in which he remained in character for the entire ...

Oscar winner appeared in character from ‘I’m Still Here’, leading many to believe he was having a mental breakdown ...