In Australia, as many as 150,000 “forced adoptions” occurred between 1950 and 1975. They have since become the subject of official investigations, a national apology and special support services for those affected. In Ireland, 60,000 children were coercively separated from their mothers in the decades after World War II. Some were interned in religious institutions; several thousand were sent to adoptive families in the United States, an episode explored in the 2013 film “Filomena.”