Natalie Portman's auspicious film debut was in Luc Besson's The Professional. She can now be seen in Star Wars Episode 1 - The Phantom Menace, Anywhere But Here, and Where the Heart Is. Interestingly enough, she and Larisa Oleynik (below) are only two days apart, DOB-wise. The heavens must have been shining in June, 1981. Because of this coincidence, I could say that Natalie and Larisa form a dual starhottie solar system.
I first saw Larisa Oleynik in Nickelodeon's "Secret World of Alex Mack," playing the title character. She can now be seen in the film Ten Things I Hate About You as well as on tv's "Third Rock from the Sun."