Gummer and Walker at the Kennedy Center Honors in 2011. (Mike Theiler/Reuters)

Splitting: Young Broadway golden couple Mamie Gummer, 29, and Ben Walker, 30, after just over a year and a half of marriage. She’s Meryl Streep’s lookalike oldest daughter and a rising star in her own right; he’s the strapping star of “Abraham Lincoln: Vampire Hunter” who just wrapped up a run on Broadway with Scarlett Johansson in “Cat on a Hot Tin Roof.” The split was amicable, reports US magazine, but fast: Gummer turned out to support her husband at the play’s opening-night party just two months ago. Oh well. There goes our fantasy casting plan to have them star in the movie about a young Hillary and Bill.
Earlier: Mamie Gummer weds Ben Walker, 7/17/11

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