Natalie Portman might only be 29, but she has managed to star in hit movies and developed a cult fan base. She is an avid campaigner for environmental issues and has even released her own line of vegan footwear. Not content with being a brilliant actress, Natalie studied a degree of Psychology while on the Star Wars set. "I don't care if [college] ruins my career," Portman has said. "I'd rather be smart than a movie star."