A Call to Remember (1997)

Paula Tobias, a Holocaust survivor who has suffered the ultimate personal tragedy of losing her spouse and children during the Nazi occupation of World War II. Now re-married and living in America during the late 1960's with husband David, they build a new life together with sons Ben and Jake. One evening, Paula receives a phone call which assures her that her son, Alec, is actually alive and in New York. This brings up painful memories from the past for everyone involved, including Ben and Jake, who force their father to talk about the Holocaust. Paula rushes to New York only to find that it was a mistake - Alec was never found. She falls into a dramatic depression, as the family confronts their fears and tries to stay together.

Unfortunately the movie A Call to Remember is not yet available on HBO Max.