In a park at night, as a train screams nearby, teenagers punch, kick and wrestle. They roll over and over, gravel sticking to their rain-soaked clothes, in a terrible embrace, beating each other until they bleed. “We didn't want to romanticize it or sugarcoat it or make it easy,” director Danya Taymor said of this scene from the Broadway musical “The Outsiders.” “I thought it was really important that these moments of violence were terrifying and brutal.”