Kate Mara topped many SAG Awards worst dressed lists, so she needed a great look to try to erase that dress from our memories.

The “127 Hours” actress went a long way to doing that by wearing a gorgeous Zac Posen Pre-Fall 2011 dress to the AARP’s ‘Movies For Grownups’ Awards, which was held at the Beverly Wilshire Hotel in LA this week.

Her silver/gold lurex dress is sexy and very glamorous.

I love her complementary accessories which included gold peep-toes and a Christian Louboutin satin clutch.

She made the right choice to go shorter with her dress anything longer would’ve been going into Nicole Kidman territory.

Credit: Style.com & Jeff Frank/ZUMAPRESS.com