Sienna Miller Represents 'American Sniper' at Oscars 2015
The 33-year-old actress is there to support her movie American Sniper, which is nominated for Best Picture and five other awards.
Sienna is taking a break from her Broadway show Cabaret to attend the awards show tonight. You can see her on stage through March 29.
FYI: Sienna is wearing an Oscar de la Renta dress, Prada shoes, a Christian Louboutin bag, and Forevermark jewelry.