I finally got a chance to watch the movie about the life of Johnny Cash. I personally liked the movie. Maybe I enjoy seeing a bit of the "reality" of a famous person, which isn't always pretty. I also didn't mind the music either, which this movie had a lot of. I don't usually listen to Johnny Cash-style music, but I enjoy many of Johnny Cash's songs.
My wife, on the other hand, doesn't understand why this movie is popular. The thought it was too long and a bit strange, but at least the strangeness was based on a person's actual life rather than something completely made up. But then again, most of the "popular" movies we've watched together she didn't get either.