In Spring Awakening: Those You’ve Known, a new HBO documentary from director Michael John Warren, 37-year-old actor John Gallagher Jr. reflects on the journey of a fictional 19th century German teenager named Moritz. Fifteen years after playing that deeply troubled teen onstage—and earning a Tony Award for Moritz’s anguished sobs and impressive high notes—Gallagher timidly admits: “If I were offered …