It’s kosher for the grumpy ones to be the more, well, normal. Their opposites, the trolls, in Trolls (2016), are unrealistically always happy. The trolls hug, smile, sing and enjoy life, but the grumpy Bergens cannot stand it. This makes the Bergens, well, more normal indeed. It’s no wonder why. Who does this? Who sings, hugs, and…