A child in South Sudan studies in a school. Fewer than half of the school-age kids are in school in South Sudan, one of the world's poorest countries, which has also been plagued by war. Sebastian Rich/UNICEF South Sudan hide caption

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Ger Duany, Reese Witherspoon and Arnold Oceng seen at Warner Bros. "The Good Lie" Premiere at 2014 TIFF on Sunday, Sep. 7, 2014, in Toronto. Dale Wilcox/Invision/AP hide caption

toggle caption Dale Wilcox/Invision/AP