The bizarre public behavior of Oscar winner Joaquin Phoenix has made him the center of speculation that the actor may be suffering from a mental disease or has been under the influence of drugs. Phoenix has appeared with dark glasses, a ragged beard and on the David Letterman program, was so incoherent that that the audience and host didn't know whether to laugh or call 911. Phoenix is the subject of a new critically- reviled documentary by his long time friend, actor Casey Affleck, which purports to shed light on Phoenix' behavior and the reasons behind it. The only problem is that Affleck now confesses that the film and his friend's behavior has all been a put-on and was never intended to be taken seriously. So, presumably the good news for Phoenix is that he isn't nuts. The bad news is that movie fans now resent him for participating in what may have been an elaborate hoax. Click here for more