Kate and Rooney Mara

Kate and Rooney Mara
Rooney Mara, Kate Mara The Mara sisters may be descendant from a football dynasty, but they are making their legacy in the acting world. Kate's career took off first in films like Random Hearts and Brokeback Mountain, but she was quickly joined by younger sister Rooney, with their joint performance in Urban Legend: Bloody Mary. Rooney's career skyrocketed when she played Zuckerberg's girlfriend in The Social Network and Lisbeth Salander in The Girl With The Dragon Tattoo. Today, the Mara girls will also be celebrating their older brother, Daniel, and younger brother, Conor, who are continuing the family football history. The Mara family owns the New York Giants and the Pittsburgh Steelers. The actresses are also the great-granddaughters of the Giants' founders, Tim Mara and Steeler's founder, Art Rooney. [Photo via @sir_james23]
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