For the director Richard Linklater , the tone of his new film Blue Moon , about the lyricist Lorenz Hart, was obvious from the jump. "It's like, well, perhaps a Rodgers and Hart song," he says in a video call not long before the movie’s Oct. 17 limited release. "Kind of beautiful and super sad and forlorn and all those things too. A catchy tune where you're devastated by the end."  Blue Moon chronicles a quietly tragic evening near the end of the life of Hart, played by Linklater’s frequent