I have talked about this movie before in some context but here it comes again.
In 1968, Frank Perry took a great John Cheever story and made a terrific film. It is the story of a man, living in suburban Connecticut, who comes up with the idea he can swim from pool to pool in his neighborhood, finally arriving home. The element of time in this movie makes it especially interesting. The time of year, the state of the swimmer, the time of life, changes that occur as he makes his swim. Only Burt Lancaster could look so fetching in his late fifties. An amazing little film. One of my favorite small films for sure.
I bet Todd Mason has some other links for you.