Alexandra Byrne (born c. 1962) is an English costume designer. Much of her career has focused on creating costumes for historical period dramas. These films include Persuasion (1995), Hamlet (1996), Elizabeth (1998), Captain Corelli's Mandolin (2001), Finding Neverland (2004), The Phantom of the Opera (2004), and Elizabeth: The Golden Age (2007). Byrne's costume design work has earned her four Academy Award nominations, and she won the award for Elizabeth: The Golden Age.Since 2011, Byrne has also designed the costumes for many films in the Marvel Cinematic Universe, including Thor (2011), The Avengers (2012), Guardians of the Galaxy (2014), and Avengers: Age of Ultron (2015). Her latest film, Doctor Strange, was released in 2016. Wikipedia