Joaquin Phoenix earned a Best Actor nomination for portraying musician Johnny Cash in the biopic The Doors.
Joaquin Phoenix . He has subsequently earned Best Actor nominations for portraying musician Johnny Cash in the biopic Walk the Line ( 2005 ) and for his role as Freddie Quell , a sex-obsessed alcoholic World War II veteran in the drama film The Master ( 2012 ) , the latter winning him the Volpi Cup for Best Actor . The Doors is a 1991 American biographical film about the 1960 -- 70s rock band of the same name which emphasizes the life of its lead singer , Jim Morrison .