Last Flag Flying is a rare movie. It’s a daring depiction of the aftermath of death in a modern war. It’s an exploration of the hearts and minds of the people left behind. It’s also a movie that feels at times as if it isn’t going particularly anywhere and manages past fits and starts to reach a deeply affecting end. It’s the kind of mainstream drama that you expect Richard Linklater’s idiosyncratic style might render inert in the same neutered manner of his mainstream take on The Bad News Bears.