You can practically count the number of “a”s that Sophie Turner adds to her delivery of “cocaaaaaine!” in Netflix’s darkly comic teen movie Do Revenge. Her über-wealthy Erica, falsely accused of having a coke habit by the scheming Drea (Camila Mendes), explodes with rage. With just a few short scenes, Turner’s unpredictable, C-bomb-dropping performance was a comedic revelation — and, with clips being gleefully shared on social media, an instant online sensation. Turner, just as gleefully, tells us how she’s bulldozed into comedy.