Mr. PHOENIX: (As Johnny Cash) June, just sing it.

NPR: 'Walk the Line' Walks a Straight Line

"Johnny and his wife, June Carter Cash, are sorry to have to postpone personal appearances, " the statement said.

CNN: Singer Johnny Cash has Parkinson's disease

Then June gets a divorce and things heat up a bit, though Johnny has to do his wooing on stage because June won't hear of it backstage.

NPR: 'Walk the Line' Walks a Straight Line

Ms. WITHERSPOON: (As June Carter) I'm not really much of a singer, Johnny.

NPR: 'Walk the Line' Walks a Straight Line