I confess, I enjoy musicals, and not just because they make my wife happy. From “Singing in the Rain” to “Moulin Rouge” musicals that are done well are often able to punch a unique emotional punch. La La Land is no exception. But beyond being a movie that is profoundly successful in landing an emotional punch, La La Land also manages to deftly challenge the contemporary uncontested truth that following one’s dreams leads to happiness.