Rooney Mara stars in Calvin Klein fragrance ad

Rooney Mara has a starring role in a new ad for Calvin Klein's Downtown fragrance.

The Oscar nominee is shown in the black-and-white video grabbing coffee, riding the subway, facing the press and prepping for a glamorous photo shoot, set to the song "Runaway" by the Yeah Yeah Yeahs.

She's also seen smiling and dancing in the ad, directed by David Fincher (who worked with Mara on "The Girl with the Dragon Tattoo").

Watch the clip below: