Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An all time classic

It's nearly 40 years old but it never dates. This is an all time classic with Walter Matthau and Jack Lemmon and screenplay by Neil Simon. It couldn't fail. I have seen it at least 4 times, I can almost remember the dialogue but it still makes me laugh fit to bust. Superb story, superb actors, superb writing, a superb film.