Yesterday was a sad day in the world of Joaquin Phoenix fandom: The actor, who played Johnny Cash in Walk the Line, announced to Extra that he's quitting film. "Are you being serious?" asked the host. "Yeah. I'm working on my music," Phoenix said. "I'm done." Phoenix's representative, when contacted for confirmation, seemed a little miffed. On the plus side: When Phoenix inevitably returns to acting, we can look forward to "Phoenix rises from the ashes" headlines.