Larry Kramer’s confrontational style has mellowed. Now 80, the playwright, novelist and AIDS activist, speaks softly and looks almost frail in a big leather armchair in his New York apartment overlooking Washington Square Park. Kramer, co-founder of the ACT UP movement that made AIDS a national issue during the U.S. epidemic of the 1980s and 90s, just published his latest book. He’s also the subject of “Larry Kramer in Love & Anger”, a documentary about his life that premieres Monday on HBO. Kramer initially resisted the idea of the documentary, saying it seemed so “final.” He said that he “still has work to do.”