"The Odd Couple" is a 1968 comedy film directed by Gene Saks and based on the play by Neil Simon. The story follows two mismatched roommates, Felix Ungar, a neat and uptight man, and Oscar Madison, a messy and carefree bachelor. Their contrasting personalities lead to humorous situations as they attempt to live together in harmony. The film stars Jack Lemmon as Felix and Walter Matthau as Oscar, showcasing their comedic chemistry. "The Odd Couple" explores themes of friendship and compatibility, becoming a classic in American cinema and inspiring a successful television series and a Broadway adaptation.