Rob Long has a very amusing piece at ForeignPolicy.com on how celebrities can maximize their star poweer to pursue foreign policy agendas:

Welcome to the fascinating world of foreign policy! It’s wonderful that Hollywood has taken such an interest in world affairs—the hotel lobbies and corridors of Davos have never been so glittering, and hotspots in Africa and the Middle East are sprinkled with stardust. Boffo kudos, as we say in the business.

The world, though, is a complicated and treacherous place. It’s impossible, really, to convey the pitfalls and booby traps waiting out there as you venture far outside the 310 area code. Playing to the lefty Academy Awards crowd is fine, but that instinct may get you into trouble in, say, Caracas or Pyongyang. If you say something that delights a Fidel Castro or a Mahmoud Ahmadinejad, chances are it’s going to go over badly back home—and for good reason.

Still, your success in navigating the ferociously competitive world of Hollywood is the ideal training for global activism. Think about it: The entertainment industry is characterized almost entirely by shrieking egomaniacs, psychotic dictators, money-losing operations, clueless bureaucrats, corrosive nepotism, enormous travel allowances, and fraudulent accounting practices—not unlike most large nongovernmental organizations, the World Economic Forum, and the continent of Africa. You are well prepared to succeed on the world stage.

Honestly, Davos is a no-win situation for you. You won’t be the most famous person there; that honor will inevitably go to Bill Clinton. You won’t be the richest; that honor will go to Bill Gates. You won’t really get the respect or the attention that you deserve. It’s sort of like going to the Oscars when you’re not nominated. No matter how famous you are, people will wonder what, exactly, you’re doing there. You’ll be photographed in a swank hotel lobby with a lot of short men in dark suits. Someone will try to hire you to appear in a commercial in Bahrain. The scientists and techies will ignore you. The Economist will print something snarky about you. Davos is a terrible costar.