While this site is about collecting the best (read: hottest) photos of Sienna Miller, we can't get around posting a few lines about who she is and what she's done.

Sienna is an American-born English model/actress. She was born in New York City on December 28, 1981.

Besides modelling, she has started to really work on her movie career with over ten projects already under her belt and with several big ones coming out shortly, including STARDUST, where she stars opposite of Michelle Pfeiffer and Robert DeNiro.

Now that you know a little about Sienna, go ahead and enjoy the galleries! :)