I. INTRODUCTION
In 2001, the birth of Shrek has earned total revenue of hundreds of million dollars. In 2004 and 2007, the launch of Shrek II and Shrek III has continued to bring success to the manufacturer. We have probably seen several movies, the main character of which has similar outlook, but none of them would have been such successful. What has made such an ugly ogre Shrek to receive so much love from the audience? Perhaps, Shrek's friendly face with charming expressions is the answer for the question.