Joaquin Phoenix might take top billing as the legendary American musician Johnny Cash, but it's got to be Reece Witherspoon who steals the plaudits as June Carter. She demonstrates all the feistiness and determination of a woman, in a man's world, quite prepared to do her own thing. Assisted by a fair degree of charisma and musical talent, she can play a stage with the likes of Jerry Lee Lewis, Elvis and Carl Perkins with confidence. The film starts at the now famous Folsom Prison just before he takes the stage and by way of a continuing retrospective, we learn of his childhood - one touched b...