Didn't like the end- and other complaints.
I enjoyed most of the film up until the end.
My only 2 in-film complaints were 1. the boy magically disappearing after him taking 1 sip of booze, it could have been done differently. 2. The AA rehab facility. AA is a bullsh~t New Age concept and hardly fits for an old school country musician and rehab is almost exclusively for hollywood and the wealthy who have no intention of getting better, but just want (or are compelled) to lay of their drug of choice for awhile. If he wanted to stop drinking, he could have just stopped.
But what really annoyed me and seemed unreal and incongruous to the film was the very end. Jean showing up was absolutely unrealistic. In life, especially for those people who live on the road, we meet a lot of people, and some of them change our lives forever, but even if you think you've got the best thing in the world, and you move heaven and earth to try to make it last, or try to fix it, they go away. Jean was gone gone gone. For her to just happen to be there, and chummy like she didn't have a bad break is absurd. It fits for film making purposes, but not for real life. Those kinds of people you never see again. Unless you're both stuck in the same town, but even then if you run into them it's like everything has changed. I just didn't buy it. What was 100% more likely was him getting to make peace with his son.