>> it is that time of year again, box office blockbusters, become a rite of summer, a time of movie studios to make up ground, make big cash. this year's crop, bigger and more expensive than ever. the question, why do some of the biggest movies, the big money ones, turn out to be the biggest flops? why do some of these turn into duds? pamela brown with the answers. >> absolutely. can big stars still rake in the big bucks? the summer movie with the big superstar making a killing at the box office. will smith's latest action movie after earth crash landed the past weekend. third place, earning only $27 million and that means everybody is looking at the next big blockbuster movie, brad pitt's movie "world war z." a superstar, no worries, right? from the beginning this movie has gotten terrible press, faced