Two girls (Elle Fanning and newcomer Alice Englert) overly concerned with the nuclear threat come of age in 1960s Britain. Friendships are tested as ideas diverge, and Ginger’s skeevy dad takes a liking to Rosa. A slow burn that’s both effective and maddening, with a melodramatic finish that shows how hard it is to grow up when the adults in your life never have. by Jamie S. Rich