To me Sacha Baron Cohen is the biggest scum. His movies clearly propagate stereotypes against Arabs and Muslims that increase western ignorance and subsequently animosity, specifically benefiting Israel. The marketing of his movies often target a segment of society with low IQ (which may have racist proclivities of their own) and hypersexuals with this type of overgrown juvenile humour.
I have yet to see one Cohen movie that picks on someone other than Arabs and Muslims. Sure he did a decent acting job in both Hugo and Sweeney Todd (good movie by the way), but it seems that any movie in which he stars, writes, and produces will do nothing more than advance stereotypes about Arabs and Muslims. He wins when his movies make a killing, but also when he sees his Zionist political agenda creep into the mainstream American discussion.