BRUCE R. MILLER

Two of the biggest thorns in “The Roses” are stars Benedict Cumberbatch and Olivia Colman.

Mismatched from the beginning, they just keep digging a hole until there’s no plot to uncover.

Considering it’s based on “The War of the Roses,” that’s too bad. The first film — with Michael Douglas and Kathleen Turner — had force and style. This just boasts a Nancy Meyers-like house and a clever cameo by Allison Janney.

Cumberbatch and Colman play the Roses, a couple who have different interests in life. He’s an architect, she’s a chef. When his career seems like it’s on a high, he helps her launch a crab restaurant. His career tanks, hers thrives and the bickering begins.

While she racks up success, he throws himself into their children, making them athletic machines. Meanwhile

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