New York: Casey Affleck is admitting to what many critics suspected all along: His documentary about Joaquin Phoenix was a fake.
The film, "I`m Still Here," followed Phoenix as he announced he was retiring from acting and launching a rap career.
The "Walk the Line" star grew doughy and disheveled, and he famously made an awkward appearance on David Letterman`s show.
Affleck, who`s Phoenix`s brother-in-law and the film`s director, now tells The New York Times that the whole thing was an act, calling it "the performance of his career." Affleck says he even faked home movies of Phoenix as a child.
But he insists he never meant to trick anyone, and rather was dabbling in "gonzo filmmaking."
Some critics called it a fascinating look at celebrity. Others assumed it was all staged.