Debra Granik’s Leave No Trace is a story about trauma and distrust. That might not be the most obvious thing in this compelling film about a Vietnam Vet and his 13-year-old daughter who live in hiding in a park forest outside Portland, Oregon. But for me, as a psychoanalyst, it is the film’s heart. Will (Ben Foster) has PTSD from a war we should never have fought. He’s witnessed killing. His wife died long ago. We can well imagine there is much more to the story of Will’s life. People have shattered his trust. We see the results. His daughter,...