A Christmas classic thanks to a great mix of humor & heart. The cast is completely game, especially Chevy Chase, who gives Clark Griswald the right mix of warmth & snarkiness, while Randy Quaid is a bull in a china shop as cousin Eddie. The late, great John Hughes's script delivers plenty of hilarious setups, from putting up Christmas lights (now inspiration for real-world decorations) to dealing with crazy relatives. At it's heart, though, is a film about a man who loves his family & just wants to give them a great Christmas. A true classic that has only gotten better with age.