The phrase "Sundance darling" comes with a bit more skepticism for me nowadays. Sure, the label can sometimes be pinned to a really honest, hilarious and emotionally satisfying film. Other times, it's stuck onto a movie that's both overworked and over-quirked. "The Kings of Summer" swings to both sides of that pendulum, its clever jokes and earnest look at growing-up constantly fighting against the pull of its indie indulgences.