Mamie Gummer, the second eldest of Meryl Streep's four children with sculptor husband Don Gummer, calls it quits with "Vampire Hunter" actor Benjamin Walker. "It's very amicable," a source tells Us Weekly. "[The split] is very new."
Meryl Streep can now refer to herself as a mother-in-law. Mamie Gummer, the oldest daughter of the actress playing Margaret Thatcher in "The Iron Lady", said her "I do" to actor fiance Benjamin Walker before 150 guests last Saturday, July 16 at her family estate in Connecticut.