Amy Westcott is an American costume design and earned a bachelor's degree in costume design at Syracuse University . Her first film job was as the wardrobe assistant on Copland (1997), before she started designing for short films. Between 2005 and 2009, she worked as a costume designer on the television series Entourage . She was a costume designer on Darren Aronofsky 's films The Wrestler (2008) and Black Swan (2010). For the latter, she was nominated for several awards, including a BAFTA for Best Costume Design.