Characters who suddenly (want to) change their lives.

As the title of the list says, I’m interested in films with characters who feel trapped in their own life and rather drastically change it or try to change it. They are rebels of their own lives, so the typical youth-rebellion against authority or society is not what I’m looking for. Especially in America’s early seventies there seemed a need to tell those kind of stories. Which films can you think of? See also the same topic at the forum.

In chronological order