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The book begins with a personal anecdote: as an 18-year-old from a small town in eastern France, Mireille spent a year as an exchange student in Weston, Massachusetts, where she discovered American food — and gained 20 pounds in the process.

Knox was a 20-year-old exchange student in the university town of Perugia when she and her then-Italian boyfriend were accused of murdering her housemate, 21-year-old Meredith Kercher, who was found dead in the apartment they shared on Nov. 2, 2007.

Xuande is the first to admit that his career is still really just starting out, but he's already played with a number of ways to present himself: as an exchange student with an accent in the comedy "Ronny Chieng: International Student," as the spirit of a Southern Vietnamese soldier in the horror drama "Hungry Ghosts," and as one half of a set of bada** twin enforcers in "Cowboy Bebop."

Knox, the American former exchange student who became the focus of a sensationalized Italian murder case, has long been vocal about the ethics of using true-crime stories as source material in entertainment.

Police believe kidnappers began manipulating the 17-year-old exchange student as early as 20 December, when he was seen with camping equipment in Utah.