Teach Us All, a documentary on school integration, “troubles some activists,” writes Chalkbeat’s Christina Veiga. The movie highlights integration efforts in Los Angeles and in New York City, including the work of IntegrateNYC, a student-led movement. . . . Among other issues, the film briefly features Eva Moskowitz, the controversial leader of Success Academy charter schools, who is fiercely opposed by many supporters of the city’s traditional public schools. . . . The film