It's remarkable how enjoyable this Western turned out to be, drawing its narrative from Willie Nelson’s 1975 album. I was taken by surprise because (1) Nelson is known for music rather than acting and (2) I thought it would be a television movie like his earlier Westerns of the eighties, “Stagecoach” and “Once Upon a Texas Train,” along with Kenny Rogers’ “The Gambler.” It actually had a small run in theaters and car…