Angelina Jolie can be an American talented actress cum director. She has received an Academy Award, two Screen Actors Guild Awards, and three Golden Globe Awards. Jolie has produced her name as an actress who are able to easily handle action, drama as well as directing. She wrote and directed the upcoming film "In the Land of Blood and Honey", a romance set from the backdrop from the Bosnian War. The two big-budget 2010 action movies, "Salt" that has been originally written for Tom Cruise, brought in $300 million with limited funds of $110 million and "The Tourist" earned 75% of its $280 million overseas market. In the face of market failure, coase has given the opposite answer: external-utility problems can be solved by explicitly using the market, without government intervention. And zhang wuchang is more absolute, he said that there is no so-called external utility, there is only unclear property rights. Anyway, coase brought revolutionary innovation to market concepts. He made it clear that the key to the market was not the "price mechanism" of impersonal machinery, but the power of participants in economic activity.