We love Rooney Mara, but somehow her look at the Costume Designers Guild Awards left us feeling a bit flat.

Low cut, cleavage baring dresses are very popular these days (just check out Rihanna's recent red carpet dresses), but we think Rooney looks a little bland in her purple sleeveless dress. What do you think?

The "Dragon Tattoo" star stars in the upcoming film "Bitter Pilm" about a woman who turns to drugs in order to deal with her husband (Channing Tatum) being released from jail.