With much high-tech effect and many giant international stars playing in,hollywood movie has long been regarded as the most sparking brand in the movie area,contirbuting its great efforts to the development of movie.Once a movie is attached with the brand "hollywood ",it can be assumed that the movie will win a pleasent place in the weekly film ranking,though it is not always true.When it comes to the purpose of the hollywood film,some people hold a skeptical view that,through the films the U.S.is trying to publicize its rotten pop culture such as sex and violence among the youths in China.We should be alert by it,but I think the true purpose of it is to extort money from the pockets of people around the world so as to keep occupying the largest position in the market.