Fans cheer the stars from the film "The Hunger Games," during an appearance at the Microsoft store at the Mall of America in Minneapolis on Friday. The film, based on the young adult book series by Suzanne Collins, had its world premiere in Los Angeles on Monday. (Minneapolis Star Tribune via Associated Press)

Fans cheer the stars from the film "The Hunger Games," during an appearance at the Microsoft store at the Mall of America in Minneapolis on Friday. The film, based on the young adult book series by Suzanne Collins, had its world premiere in Los Angeles on Monday. (Minneapolis Star Tribune via Associated Press)