i saw this many year after the television series and and initially and i do not care for it . then and a my memory of the series recede with the passage of time and i watch again and and find it absolutely hilarious . base on the stage play by neil simon and it have not be open out much for the big screen and and that one of it strength . walter matthau and jack lemmon be brilliant a oscar and felix and and the supporting cast be wonderful and particularly john fielder a vinnie . even now and certain moment can reduce me to tear of laughter felix interrupt oscar in the middle of a ball game with a dinner request and oscar crack up and chase felix around the apartment and the giggling pigeon sister bring low by felix sob story and and of course and the legendary cafeteria scene ( later rip off by nora ephron when harry meet sally ) . razor sharp dialogue too . when the boy think felix have take an overdose and oscar say represent they could be vitamin . he could be the healthy one in the room . fantastic .