Dualstar Entertainment is a media and entertainment company founded in 1993 by Mary-Kate and Ashley Olsen, who are well-known twin actresses. The company focuses on producing films, television shows, and merchandise aimed primarily at children and young teens. Over the years, Dualstar has created a variety of successful projects, including the popular Olsen Twins movies and television series. The brand has expanded to include clothing, accessories, and other products, making it a recognizable name in the entertainment industry.