“This is more than a legalization struggle,” Angy Rivera says of the plight of the more than 11 million undocumented people in America today. “But a psychological war that measures character and patience.” The documentary Don’t Tell Anyone (No Le Digas a Nadie) follows Rivera’s daily journey out of an environment steeped in fear to becoming an activist for young people like herself. Director/editor/producer Mikaela Shwer’s richly textured portrait evokes millions of similar stories across the country.