Walk Hard: The Dewey Cox Story ★★★

Kadsan and company are very well studied on the ways of the musical bio-pics and eviscerate them in a very intelligent way, but for me the funniest jokes were the dumbest ones:
Dewey's teenage wife: "What about my dreams?"
Dewey: "I told you I can't build your candy house! It will fall apart, the sun will melt the candy, it won't work."