“The Columnist” (Film Movement) turns homicidal when she becomes the subject of attack by social-media trolls; over the course of “Three Summers” (Icarus Films Home Video), a Brazilian housekeeper (Regina Casé) strives to break out of a rigid caste system; Andrei Konchalovsky’s acclaimed “Sin” (Corinth Films) examines Michelangelo as both a legendary artist and a political animal, contending with the agendas of the Medicis and the Vatican. Based on the manga series, “The Great War of Archimedes” (Well Go USA Entertainment) looks at the Japanese navy’s efforts to build the world’s largest battleship; Japanese Oscar entry “True Mothers” (Film Movement) examines the life of an adoptive family and what happens when the birth mother shows up to demand the return of her son; Fabrice du Welz’s Ardennes trilogy concludes with