It has been too many years since I last saw this film, but both Jill Clayburgh and Peter Falk are, in my opinion, perfectly cast as the two friends dying. I can barely remember any of the details, but the heart rending part at the end really stuck and even now, after all of this time, still moves me. If I recall correctly, Peter Falk returns to his car after Phoenix (Jill Clayburgh) dies and discovers he has a flat tyre. He proceeds to get the car jack out of the boot and something, I cannot remember what just makes him flip and he smashes all of the car windows. If I were in his shoes under those conditions, I would probably do the same thing. I hope someone will correct me if I am wrong about the ending, but that is the way I remember it. If you ever get the chance to see it, do so and if possible, try to record it. I hope I get the chance to see it again someday.