The Odd Couple II is the 1998 sequel to 1968's The Odd Couple. Written by Neil Simon (who also produced), the film reunites Jack Lemmon as Felix Ungar and Walter Matthau as Oscar Madison. The film was the actors' last together. It is also significant among sequels for having one of the longest gaps between the release of the original and a sequel in which all leads return.
Each actor made only one more theatrical film after this: The Legend of Bagger Vance for Lemmon and Hanging Up for Matthau, in which neither actor played a leading role, both in 2000.