Oh my, look at Matt Damon go nuts on Adrian Grenier during the filming of a PSA for Damon's charity, OneXOne.org. Hey, what's Jeremy Piven doing there? Anyway, this behind-the-scenes look at Hollywood egos is sure to get attention online.
This YouTube video came via a tipster who writes, "Hi; I'm not sure how this works, but I got this footage from the set of Entourage the other day. Matt Damon was directing a PSA starring Adrian Grenier and he flips out on Adrian in front of everyone! [It] even shows Jeremy Piven as he tries to keep the peace - but Matt totally loses his cool and goes off."
We, on the other hand, are pretty sure how this works: Have a Hollywood star do a cameo playing himself on your Hollywood-focused TV show so he can promote his charity, incorporate an ego-driven blow-up on the set of a PSA into the plot, make a fun, shaky little video of said blow-up, put it on YouTube, and send it to gullible blogs claiming that it depicts a real on-set blow-up, which blogs will write about it and drive traffic to it in advance of the show's season finale featuring the Hollywood star.