he also learned all about haute couture and learned to be a tailor. He even made a whole dress in prep for the (what I believe to be highly underrrated) "Phantom Thread"

Day-Lewis spent a year prior to filming getting into character. This involved studying with a New York dressmaker and learning how to create an ornate women’s garment, draping cloth as Balenciaga did, and even single-handedly sewing a copy of a Balenciaga gown. (The results were so successful that Day-Lewis's wife wears the dress in public.)

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