In a bright rehearsal room in Budapest, a week or two before filming began on Poor Things, the actress Emma Stone picked up an apple from the breakfast table, thrust it quizzically between her legs, and started to moan. This was an early moment of self-discovery for the film’s dauntless (and filter-less) heroine, Bella Baxter – a formerly dead Victorian gentlewoman who is reanimated, Frankenstein-style, with the transplanted brain of her unborn child, and then strikes out on a sexual and philoso