After 17 years, things have got too predictable and stale. They argue, they visit a marriage counselor, Richard (drunk) visits a prostitute. They split up. After meeting other people, they are re-united at a night club where they realize that their marriage was better than their divorce.
Several name actors in this one.
Dick Van Dyke ... Richard Harmon
Debbie Reynolds ... Barbara Harmon (Prince Leia's mom.)
Jason Robards ... Nelson Downes
Jean Simmons ... Nancy Downes
Van Johnson ... Al Yearling
Joe Flynn ... Lionel Blandsforth (Captain Binghamton - McHales Navy plus several Disney movies with Kurt Russell)
Lee Grant ... Dede Murphy
Tom Bosley ... Farley (Mr. C - Happy Days)
Tim Matheson ... Mark Harmon (as Tim Matthieson) (Jonny Quest voice actor plus several teen movies including Animal House.)
Writers: Robert Kaufman (story), Norman Lear (screenplay)
From what I saw nothing has changed when it comes to a Divorce except for the happy ending...