By remaining totally committed to its quiet, drama-free, observational style of documentary filmmaking, Mr. Bachmann and His Class ends up teaching us a whole lot about the way we view educational spaces and difficult students as well. While the titular German teacher is mainly there to teach language, the way he patiently handles disagreement and conflict—reorienting the immature or harmful beliefs they may have learned from home or from elsewhere—is truly inspiring to witness. We never see these home lives and the film’s director, Maria Speth, knows better than to romanticize anybody in this classroom. But over the film’s lengthy runtime, it really begins to feel like we get to know and understand each of these kids, and to root for their ability to change their views and become more open and appreciative towards one another.