Perhaps inevitably, the opening minutes of Los Sures are its strongest. It begins with a dizzying, sharply edited montage covering practically the whole breadth of the Puerto Rican South Williamsburg neighborhood, accompanied by narration from several unidentified people. It certainly isn’t abstract, but there is an irresistible vigor to the sequence—it and the short interludes that are sprinkled throughout the film are by far the most interesting aspects. In comparison, the bulk of the documentary is taken up by comparatively uninteresting “standard” personal testimonies, following a handful of people intending to represent the community. However, the only aspect that truly distinguishes them is their social class, as their personalities and struggle to survive all take up a similar tenor. Even more unfortunately, the film becomes more and more like a political screed in its interview of the featured social worker in the final section. But throughout, the verve and intimacy of the film remains, and though Los Sures could have gone much, much further in its representation of this formerly vibrant community, it is valuable nonetheless.