The Trolls are back for another fun-filled animated adventure, and the focus of this third installment is all about family (and boy bands!). They royal wedding between Bridget (Zooey Deschanel) and King Gristle (Christopher Mintz-Plasse) is interrupted when Branch’s (Justin Timberlake) long-lost brother shows up looking for help. We (and all the other Trolls) are …