'Oranges And Sunshine': Emily Watson Reunites Families In This Exclusive Clip (VIDEO)

The 20th century saw an immense number state-sponsored human tragedies and horrors, global mass murders and wars that splashed red across newspaper headlines and flashed across television screens. Many stories, however, went largely untold, lost to consciences numbed by all the pain. One of those secret injustices is now finally coming to international attention, decades after a hero helped bring closure to some of its victims.

In "Oranges And Sunshine," Emily Watson plays real-life British social worker Margaret Humphreys, who helped reunite thousands of splintered families after the were subjected to unspeakable evils on two sides of the world. Following World War II, the British government rounded up tens of thousands of children from financially distressed homes and sent them to Australia, telling them their parents had died and that they'd enjoy a life of plenty on the island.

It was quite the opposite; children were forced into labor, and often institutionalized as they suffered through unimaginably difficult lives. Humphreys began looking into the issue after receiving a letter from a woman in Australia, uncertain of who she truly was, and eventually devoted her life to the cause. She's reunited thousands of families, as well as broken hard truths to many more, and her dedication and spirit make the film an emotional journey for sure.

The film, which co-stars Hugo Weaving, is getting rave reviews and is in theaters now.