Choices of the Heart (1983)

Jeannie Donovan, a party-girl searching for that something missing in her life, finds it in El Salvador, hooking up with three nuns and a heartful of ache, love, and horror in the midst of a civil war. This is a true story of the four American churchwomen murdered in the Central American countryside, and the indifference of the American government to their sad and desperate story.