Mamie Gummer on Being Mean to Her Mother, "Storming the Castle" in Hollywood and Why She Hates Karao
Mamie Gummer, starring in the new Diablo Cody film "Ricki and the Flash," tells Playbill.com about co-starring with her superstar mother, Meryl Streep — and how unfair it is when her mother's costumes are better than hers.