Caddyshack and Groundhog Day are very different comedies. One is anarchic and silly, the other tightly constructed and emotionally serious. Both always make me feel better, and both never lose their rewatchability. Harold Ramis wrote and directed both of them. He also had a hand in Ghostbusters, National Lampoon's Vacation, National Lampoon's Animal House, Meatballs, Stripes, Back to School, and SCTV as writer, director, actor, and/or producer. He somehow figured out how to make popular, mainstream films that appealed to huge audiences without betraying his empathetic, original, and personal point of view, and Hollywood is much poorer for his loss.