Sienna Miller Appears on 'Fallon' After Making Red Carpet Debut with Boyfriend Oli Green

This was a big week for Sienna Miller!

The 40-year-old actress kicked off the week by making her red carpet debut with boyfriend Oli Green and then she appeared on The Tonight Show Starring Jimmy Fallon.

Sienna and Oli walked the red carpet together at the Vanity Fair Oscar Party this past Sunday, less than two months after it was first reported that they’re dating.

Later in the week, Sienna flew to New York City to appear on Fallon on Thursday (March 31). She appeared on the show to promote her Netflix series Anatomy of a Scandal, which will premiere on April 15. Watch the trailer now!

Click inside to watch the interview video…

You can watch Sienna‘s interview below.

FYI: Sienna is wearing vintage Armani at the party and Saint Laurent on Fallon.