Elaine May’s maverick “Mikey and Nicky” (1976), starring Cassavetes and Falk, which feels like a sequel to “Husbands,” with a touch of “The Killing of a Chinese Bookie” thrown in. Though May put her own stamp on the material, the gritty, improvised observations have a Cassavetes-like realism. Relying on evocative dialogue and intense acting, the narrative weaves a love-hate bond between two men during one fatal night in Philadelphia’s lower depths.