It's a poster of the Last Supper....but in place of Jesus & Da Gang are "iconic" Hollywood actors and other performers. The ones I remember are Brando, Monroe, Sinatra, Elvis (pre jumpsuit era), and several others. I saw this at a friend's apartment in high school, but haven't spoken to the guy since and don't know how to get a hold of him. And yes, I've googles with no success.
Hope someone can help
Hope someone can help