What I'm not so clear on is how much contact these folks actually have with their celebrity clientele. Is an agent always on the lookout for his or her client's next Big Role? If so, does the agent keep the celebrity up to date on the process of casting the next project? What does a handler do exactly? Does the publicist set up different things than the agent? I'm guessing interviews and the like (meaning the, em, publicity-related things) are done through the publicist? Etc.
Also, what do celebrities' schedules look like when they're not acting/singing? I know movies and albums can take anywhere between six months to several years, so that's a significant chunk of time taken care of there. But what else is in the pie chart? I know some celebs attend charity functions, others see personal trainers, and there are those who have side projects that have nothing to do with their careers. How long can celebrities enjoy down time before they're off and running for their next project? I'm guessing there's a constant pressure to be Seen and Not Forgotten.
Any information is welcome! Books, documentaries, articles, etc. My search has resulted in a lot of gossip and interviews, but not much about what happens behind the scenes.
(I'm starting to assume I should just mainline Entourage for my research.)