is embracing her dark side once more. When we last saw the star at the Cannes Film Festival, her hair was a —a color the Oscar winner returns to again and again. However, it appears that she's taken a cue from Bella Baxter and gone back to a darker tone for the New York premiere of her new movie Kinds of Kindness.While Stone's hair still has a slight reddish sheen to it, it's definitely than red these days.