For Walk the Line, his biopic of country legend Johnny Cash, director James Mangold took a different tactic than director Taylor Hackford did with his Ray Charles bio, Ray. Where Hackford used Charles' classic original recordings for Atlantic as the heart of the film, Mangold decided to use new recordings for his movie, hiring producer T-Bone Burnett, the mastermind behind the surprise soundtrack success of the Coen Brothers' old-timey O Brother, Where Art Thou?, to steer his cast through re-cre