Joaquin Phoenix's 'I'm Still Here' trailer is arty and confusing

There's been endless speculation about Joaquin Phoenix's biopic "I'm Still Here: The Lost Year of Joaquin Phoenix." It's alleged to be a documentary about the reinvented life of the former Oscar-nominated actor-turned-really-terrible-hip-hop-musician.

Some (probably including David Letterman) believe this so-called journey of discovery to be a giant hoax. Others call it a drug induced descent into madness. Still others compare to a brilliant Andy Kaufmanesque piece of performance art.