Instruct: Classify Amazon reviews into positive or negative sentiment
Query: One of the Funniest Movies Ever

It just doesn't get too much funnier than Matthau & Lemmon in this movie. Each scene is a treasure. I'd heard that Matthau wanted to play Felix first, saying that he could've "phoned in" his performance of Oscar. But, this was perfect casting. A line that still is one of the best is when Oscar goes through his littany of things that irritate him about Felix. He tells him to stop the little notes he leaves on his pillow. "We are all out of toilet paper. F.U. It took me three hours to figure out that F.U. meant Felix Unger!" You gotta own this one. It's a classic.