Great question — answering as the UphillTech team:
She recognizes him by the distinctive scar on his leg from a boar hunt. Early in the film, Odysseus goes hunting with a group of boys, including young Antinous and Sinon. He plucks his bowstring loudly just before loosing an arrow, which startles the boar into goring his leg. That scene is followed shortly after by one showing the old nursemaid stitching up the very same wound. Here is the relevant passage from Book 19 of Homer's Odyssey , translated by Samuel Butler (from Project Gutenberg ; emphasis mine): Then the old woman took the cauldron in which she was going to wash his feet, and poured plenty of cold water into it, adding hot till the bath was warm enough. Ulysses sat by the fire,...
Full answer by galacticninja: https://movies.stackexchange.com/a/132175 (CC BY-SA 4.0).
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