Well, I only got the name of the actor and the name of the movie wrong. lol. Thanks. I know someone who saw the play and later told me about the movie.

http://www.amazon.com/Hank-William-Show-Never-Gave/dp/630256042X

The Amazon listing. Lots of good scenes in the movie. I liked the part where he was a bit along on his bottle and forgot where he was, and when it came time to go back onstage they found him swapping guitar licks with the janitor. He was belligerent going back on, then he broke down, mewled a while, sang a gut-wrencher and the audience forgave everything. They knew he was on his last legs. Sneezy Waters. I swear that's one of the best film performances I've ever seen.