Barbie and her friends stumble onto a movie set and get cast as extras. But their friendship is tested when one of the girls makes a quick rise to stardom. Barbie and her friends stumble onto a movie set and get cast as extras. But their friendship is tested when one of the girls makes a quick rise to stardom. Barbie and her friends stumble onto a movie set and get cast as extras. But their friendship is tested when one of the girls makes a quick rise to stardom. Barbie and her friends stumble onto a movie set and get cast as extras. But their friendship is tested when one of the girls makes a quick rise to stardom.