Sir Anthony Hopkins on telling story of 'hero' Sir Nicholas Winton in One Life
Yet about 6,000 people are thought to be alive today because of what he, and other volunteers in Prague, pulled off - against the odds.
Some descendants of the Kindertransport children were in the audience when the One Life film recreated the memorable That's Life scene.
"It was really quite an emotional moment," Sir Anthony tells me. "But I think this whole story has affected me and has actually stayed with me throughout the whole of my life."
The Welsh actor was born in 1937 and was 18 months old when war was declared. He remembers "the bombing of Swansea and the air raids".
He also recalls going to London with his parents in 1945 when "the whole of Europe was in rubble". His father went to an exhibition of the shocking first photographs to emerge from the Bergen-Belsen concentration camp after it was liberated by British troops in April 1945. ( By Katie Razzal and Fram Martins)