Mamie Gummer, husband Benjamin Walker split

Mamie Gummer and Benjamin Walker have split.

Gummer, who has appeared on TV's Emily Owens, M.D. and Off the Map, is the daughter of actress Meryl Streep. The 29-year-old actress can be seen on the big screen in the Steven Soderbergh drama Side Effects.

Walker, 30, starred in the action-horror film Abraham Lincoln: Vampire Hunter. He and Gummer met while appearing in a Spring 2008 production of Les Liaisons Dangereuses in New York.

The couple announced their engagement in 2009 and wed in July 2011. Gummer's publicist tells Us Weekly that the breakup is amicable.