Reese Witherspoon also "walked the line" as Cash's long-time love interest and eventual wife. Name that singer.

Playing opposite Phoenix was Reese Witherspoon as Cash's wife, June Carter Cash. Witherspoon vied for the role but also admitted it was one of the hardest movies she'd ever made, saying, "I had to do four months of rehearsals...I had to record an album, which was the most challenging, horrifying experience of my life." In the end, Oscar in hand, it paid off.

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