All in the family! Get to know these stars' brothers and sisters
Kate and Rooney Mara
"As kids, we were both obsessed with movies and musicals," House of Cards' Kate—whose family founded the New York Giants and the Pittsburgh Steelers—told Chelsea Handler of her younger years with Oscar-nominated Girl With the Dragon Tattoo actress Rooney.
Credit: Dimitrios Kambouris/WireImage.com