Movies opening Friday:

"The Ant Bully": After a 10-year-old boy terrorizes an ant hill in his yard, the tiny insects use a magic potion to shrink him to their size and make him live in their colony. Julia Roberts, Nicolas Cage, Meryl Streep and Paul Giamatti head the voice cast for this animated film. (PG)

"John Tucker Must Die": When three popular girls from different cliques discover they've all been dating the school stud, they band together to seek revenge. Despite the jerk's charm and ever-growing popularity, the girls scheme to soil his reputation and break his heart, with the help of a new girl in town. Jesse Metcalfe, Sophia Bush, Ashanti and Brittany Snow star. (PG-13)

"Miami Vice": Director Michael Mann has stripped any semblance of the 1980s from the TV action show he helped create and updated it with a gritty new look for this movie adaptation. Colin Farrell and Jamie Foxx step into the roles of cops Sonny Crockett and Ricardo Tubbs, made famous by Don Johnson and Philip Michael Thomas. In the movie, the undercover duo is out to bring down a dangerous South Florida drug ring. Gong Li and Naomie Harris co-star. (R)