How close is Entourage based on real Hollywood?

Is that how hollywood is? is there that much pot, sex, and pissed off people? i just saw half an episode and wondered.How close is Entourage based on real Hollywood?most of it is based off experiences of various people (mark wahlberg's life loosely based off (pilot only)) after the pilot most of it was from what it known from media.How close is Entourage based on real Hollywood?Most likely. And more cocaine than pot.