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The movie "I, Tonya" stars Margot Robbie as Tonya Harding, a controversial figure in the world of figure skating. Sebastian Stan plays Jeff Gillooly, Harding's ex-husband and the mastermind behind the infamous attack on her rival, Nancy Kerrigan. The film delves into the personal and professional struggles of Harding, shedding light on the darker aspects of the competitive sports world and the lengths some individuals will go to achieve success.