'I Am Not a Witch' is funny, terrifying, and potent

Our critics review “Peppermint,” starring Jennifer Garner as a woman who wakes up from a coma after her husband and daughter are killed in a drive-by shooting; “I Am Not a Witch,” about a young girl who’s taken to a witch camp for tourists in Zambia; “City of Joy,” a documentary on Netflix about women living in the Democratic Republic of Congo; and “The Nun,” about an investigation into the death of a nun in Romania.

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