Dialect coach Erik Singer explains the vocal choices made by 31 different actors trying to slip into character for filmed biographies of real people. He analyzes Denzel Washington’s Malcolm X, Meryl Streep’s Julia Child, Daniel Day Lewis’s Abraham Lincoln, Cate Blanchett’s Bob Dylan, Ewan McGregor’s Alec Guinness (as Obi-Wan Kenobi), and more. It’s part of a series from Wired.