Can´t comment on the authencity, but that has to be one of the most messy and chaotic item descriptions ever!!! It never stops and the same "info" over and over again...
If you want $30 000 for your item, like this seller wants, why would he/she start the description with the e-mail from Darren Julien saying that he estimates the value to $4000-$6000? That´s not good marketing... :-)
And I particulary likes this picture, it adds a lot of value to the listing:
LOL you know, I've never seen this before. I have to wonder if this is where the idea originated --- he studied and watched old movies over and over and over. Studying the greats. His kids talk about it in interviews. :)