The Crosby family is sort of legendary for all of its traumas and familial problems, even though it has this appearance of being this perfect world. It had quite a dark side to it. ↗
As for Tenacious D, of course it could work as a full length movie; all it requires is a great writer and great director with an ability to think outside of conventional film comedy. ↗
So much of our lives is given over to the consideration of our imperfections that there is no time to improve our imaginary virtues. The truth is we only perfect our vices, and man is a worse creature when he dies than he was when he was born. ↗
Country music has changed tremendously, so what now is considered country was not considered country at that time. We were doing stuff that probably could have been called country music today, but would certainly have not have fit in at that time. ↗