The question of why anyone else would eat a human underpins all cannibal films. One dubious answer presented by early examples of the genre, is that cannibalism is standard practice in certain corners of the globe. The word "cannibal" is derived from "Carib", an ethnic group that also gave its name to the Caribbean. Christopher Columbus and other Spanish conquistadors reported that the Caribs dined on roasted human flesh, and colonial people-eating lore was soon well established: the cannibal...