Voyages (1999)

In the first of the three linked episodes of French writer-director Emmanuel Finkiel’s delicate, poignant Voyages, a bus tour of Poland, by present-day French survivors of the Holocaust, suffers a mishap: en route to Auschwitz from a Jewish cemetery, the bus breaks down. In the second episode, one of them confronts the possibility that her father, long presumed to be among the Six Million, in fact survived; but is he her father?

Unfortunately the movie Voyages is not yet available on HBO Max.