What was Natalie role in the Star Wars movies?

You're likely thinking of Natalie Portman, who played the role of Padmé Amidala in the Star Wars prequel trilogy (Episodes I-III):

* Star Wars: Episode I – The Phantom Menace (1999)

* Star Wars: Episode II – Attack of the Clones (2002)

* Star Wars: Episode III – Revenge of the Sith (2005)

Padmé Amidala was a Queen and later Senator of Naboo, a key figure in the Galactic Republic's fight against the Separatists, and ultimately the mother of Luke Skywalker and Leia Organa.