We all know Joaquin Phoenix hasn't been himself of late, but apparently he thinks he's Amy Winehouse.

While filming his documentary last night in Miami, Phoenix attacked an audience member who was heckling the -- okay, we'll go with rapper for now, until I find a better way to describe him (wait -- nutjob, basketcase, bats*it boy, whacko, Tom Cruise -- there's five ways right there).

Here's the thing. Once Phoenix and his brother-in-law, Casey Affleck, stop filming this ode to Andy Kaufman, who's going to see it? Not only is it all playing out on YouTube in real time, I would be surprised to find a single person who considers this art.

Comedy, yes. Art, no. Enjoy:

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Joaquin Phoenix: Is he faking this?
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Joaquin Phoenix gave up acting to become a rapper? Shenanigans

[Source]