Kotch (1971)

Synopsis
For his only directorial effort, Jack Lemmon selected his old friend and habitual co-star Walter Matthau to play the central character. Joseph P. "Kotch" Kotcher (Walter Matthau) is an irksome 72-year-old who lives with his son (Charles Aidman) and daughter-in-law (played by Lemmon's wife Felicia Farr). Kotch is far from senile, but there are times that his family wishes he was a little more docile and doddering; he insists upon expressing his unwarranted opinions on all matters, both large and small, forever challenging his daughter-in-law's authority. When it is suggested that Kotch find himself a nice retirement home, the rebellious old man decides instead to take a long bus ride, hoping that his family will have cooled off by the time he returns. Before leaving, he tries to make amends with the family's former baby-sitter Erica (Deborah Winters), whose dismissal he has brought about. Upon learning that Erica is pregnant, Kotch loans her some money; and when she moves away to Palm Springs, he moves in with her, hoping to be of some help. As they get to know one another, Kotch and Erica discover that they're very much alike: both have been cast aside by their relatives due to their independent airs. Kotch was adapted by John Paxton from a novel by Katharine Topkins. Watch for director Jack Lemmon in a bit as a bus passenger. ~ Hal Erickson, All Movie Guide