The movie was made for television but was an enormous hit and ended up having a limited theatrical release the same year.
This was the first of the three terminally ill characters Jill Clayburgh played in her career, all for television movies. The others were in "Miles to Go" and "Reason For Leaving: The Jill Ireland's Story".
Jill Clayburg actually died of leukemia in 2010, thirty four years after the making of this TV movie.
The book Peter Falk reads in one scene is Agatha Christie's "Elephants Can Remember".