Kevin Costner furrows his brow a lot in Dragonfly. His lower lip quivers tremulously. He sobs; he looks shaky; he’s grief-stricken within an inch of his life. In short, he emotes. If 105 minutes ...

"Dragonfly" is also, at least for the first half, a solid attempt to dramatize something very human and confusing: the way grief messes around with us. Costner plays a doctor whose wife dies while ...