Sienna Miller’s Top 5 Style Rules

[tiImage width=”300″ height=”400″ url=”http://img2.timeinc.net/instyle/images/2010/wrn/122810-Sienna-Lead-300.jpg” credit=”Juan Rico/Fame” align=”left” border=”1″ alt=””]Happy birthday, Sienna Miller! In honor of the trendsetting actress’s 29th birthday today, we took a look back at her style to pinpoint her top five style rules. Who can’t learn a thing or two from this red carpet master? Click through to see Sienna Miller’s top go-to styles. Plus: Tell us what you think of her style in the comments!