Mary-Kate and Ashley Olsen are big business Stateside, with a host of TV shows under their belts. In this film they present opposing personas: Ashley’s the rebellious chick who bunks off school and plays drums; Mary-Kate’s the prissy academic one. By some weird quirk of fate, the sisters find themselves embroiled in a cross-country chase involving a missing computer chip, a record piracy outfit, a truancy officer and an annoying dog. And that’s it. It wants to be funny but isn’t, while the plot’s a compendium of improbable occurrences.